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Top 20 Hardest Language in the World to Learn in 2026-2027
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July 6, 2026
Have you ever wondered which is the hardest language in the world? When thinking about learning a new language, whether it’s for studying abroad, career reasons, or just cultural exploration, people often wonder about the difficulty.
With more than 7,000 languages spoken globally, some are relatively easy to learn, while others can take years of dedicated practice to master. This is why many learners search for the hardest languages in the world before starting their language-learning journey.
The difficulty of a language depends on factors such as grammar, pronunciation, writing systems, vocabulary, and cultural nuances. According to the Foreign Service Institute (FSI), languages such as Mandarin Chinese, Arabic, Japanese, Korean, and Cantonese are among the most difficult to learn, often requiring up to 2,200 hours of study to achieve professional proficiency.
In this guide, we will explore the hardest languages in the world list, understand what makes certain languages challenging, and discover the top 20 hardest languages in the world based on language difficulty rankings and expert research.
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Top 20 Hardest Language in the World to Learn in 2026-2027
According to language experts and FSI language difficulty rankings, this is the hardest language in the world list:
Rank
Language
Difficulty Level
1
Mandarin Chinese
Extremely Difficult
2
Arabic
Extremely Difficult
3
Japanese
Extremely Difficult
4
Korean
Extremely Difficult
5
Cantonese
Extremely Difficult
6
Navajo
Very Difficult
7
Finnish
Very Difficult
8
Polish
Very Difficult
9
Russian
Very Difficult
10
Icelandic
Very Difficult
11
Hungarian
Difficult
12
Vietnamese
Difficult
13
Turkish
Difficult
14
Thai
Difficult
15
Greek
Difficult
16
Persian (Farsi)
Difficult
17
Hindi
Difficult
18
Czech
Difficult
19
Serbian
Difficult
20
Hebrew
Difficult
1. Mandarin Chinese (Hardest Language in the World)
It is commonly believed that Mandarin Chinese is the most difficult language in the world for English speakers to learn. There is no alphabet in this language, which implies that one needs to remember many characters in order to be able to read and write in it. Another peculiarity about Mandarin Chinese is that it is a tonal language.
Why Mandarin is Hardest Language in the world:
Four tones
Thousands of characters
No alphabet
Complex pronunciation
2. Arabic
Estimated Time: 2,200+ hours Native Speakers: 310+ million
The Arabic language is one of the most difficult languages to learn due to its unique script, which is totally different from all others. This language is written from right to left, and short vowels are usually not used. Moreover, speaking Arabic varies from one country to another.
Why Arabic is difficult:
Right-to-left script
Different dialects
Complex grammar
Difficult pronunciation
3. Japanese
Learning Time: 2,200+ hours Native Speakers: 123+ million
Japanese is frequently listed as one of the Hardest Language in the world to learn since the language entails learning three sets of writing systems – namely, Hiragana, Katakana, and Kanji. Japanese is also distinguished by various levels of politeness depending on the context.
Why Japanese is difficult to learn:
Three writing systems
Thousands of Kanji characters
Honorific speech
Different sentence structure
4. Korean
Estimated Time: 2,200+ hours Native Speakers: 77+ million
The Korean language has gained popularity in many parts of the world because of its music and dramas, but it is among the most challenging languages to learn. The Korean language has a different grammar from the English language.
Why Korean is difficult Language in the world to learn:
Subject-Object-Verb order
Multiple speech levels
Complex grammar
Honorific system
5. Cantonese
Learning Time: 2,200+ hours
Cantonese is a commonly spoken language in Hong Kong and other parts of Southern China. Cantonese is one of the most difficult languages to learn due to its numerous tones as compared to Mandarin.
Why Cantonese is the most difficult language in the world:
Six to nine tones
Character-based writing
Complex pronunciation
Fewer learning resources
6. Finnish
Estimated Learning Time: 1,100+ hours Native Speakers: 5.5+ million
Finnish is considered one of the hardest languages to learn in Europe. It falls under the Uralic language group and shares very few similarities with English. It is very difficult for learners because of the complex grammar and vocabulary.
Why Finnish is difficult:
15 grammatical cases
Vowel harmony
Unique vocabulary
Complex word formation
7. Polish
Learning Time: 1,100+ hours Native Speakers: 45+ million
Polish is one of the Hardest Language in the world to learn when it comes to pronunciation and grammar. The use of consonant clusters and changes in the ending letters of words makes it extremely challenging for non-native speakers.
Why Polish is the most difficult language in the world:
Seven grammatical cases
Difficult pronunciation
Verb aspects
Gender-based grammar
8. Russian
Learning Time: 1,100+ hours Native Speakers: 258+ million
The Russian language makes use of the Cyrillic alphabet, an unknown language for many people. Besides, the nouns and adjectives in Russian have different forms based on how they are used in the sentence.
The Icelandic language has retained many grammatical structures from the Viking Age. The language comprises complicated noun structures and extensive vocabulary, which may prove challenging for foreigners.
Why Icelandic is difficult to learn:
Archaic grammar
Multiple noun cases
Unique vocabulary
Limited learning resources
10. Hungarian
Learning Time: 1,100+ hours Native Speakers: 14+ million
Hungarian also belongs to the Uralic language family and uses very few words similar to English words. The language consists of long words with many suffixes, making it one of the most challenging languages to learn.
Why Hungarian is difficult to learn:
18 grammatical cases
Agglutinative grammar
Complex suffixes
Unique vocabulary
11. Navajo
Navajo language is well known for its very complex grammatical system. A verb in Navajo language can carry as much meaning as an entire sentence in the English language.
Why Navajo is difficult:
Complex verb structures
Tonal pronunciation
Limited resources
Unique grammar patterns
12. Vietnamese
Learning Time: 1,100+ hours Native Speakers: 85+ million
Vietnamese is written using the Latin script, but pronunciation is still hard since the language is tonal. Regional dialects also vary when it comes to vocabulary and accent.
Why Vietnamese is the Hardest Language in the world to learn:
Six tones
Regional dialects
Pronunciation challenges
Classifier system
13. Turkish
Turkish has grammatical logic but forms long words by attaching suffixes to a root word. There is also a unique sentence structure.
Why Turkish is the most difficult language in the world:
Agglutinative structure
Vowel harmony
Long words
Different word order
14. Thai
Estimated Learning Time: 1,100+ hours Native Speakers: 60+ million
Thai has a distinctive writing system with a tonal pattern of pronunciation. The reading aspect is challenging for learners due to the lack of spacing between words in written Thai.
Why Thai is difficult:
Five tones
Unique script
No spaces between words
Complex pronunciation
15. Greek
Greek uses a distinct alphabet and has a grammatical structure quite different from that of English. Noun genders and verbs have to be learned as well by students.
Why Greek is a difficult Language to learn:
Greek alphabet
Gender rules
Multiple cases
Complex verbs
16. Persian (Farsi)
Learning Time: 1,100+ hours Native Speakers: 62+ million
Persian is easier compared to other Middle Eastern languages; however, learning the language requires a student to learn the use of a new alphabet as well as sentence structure.
It is among the most spoken languages in the world. The students face difficulties with the Devanagari script and gender-based grammar in their initial stage of learning.
Why Hindi is the Hardest Language in the world to learn:
Devanagari script
Gender-based grammar
Postpositions
Honorific speech
18. Czech
The Czech language features complicated grammar and pronunciation. It utilizes several cases in nouns and different forms of verbs.
Why Czech is difficult:
Seven grammatical cases
Complex pronunciation
Verb aspects
Changing word forms
19. Serbian
Serbian is unique in that it has two official scripts – Latin and Cyrillic. One must be aware of a system of grammar rules that incorporates many cases and verb conjugations.
Why Serbian is difficult to learn:
Two writing systems
Seven cases
Complex grammar
Verb conjugations
20. Hebrew
Hebrew is a language that combines a very old alphabet with contemporary speaking. It is read from right to left, and the omission of vowels in common texts makes comprehension difficult.
Why Hebrew is difficult:
Right-to-left script
Omitted vowels
Root-based vocabulary
Gender-based grammar
How Long to Learn the Hardest Languages? FSI Language Difficulty Rankings
According to the FSI, the number of hours required to learn a language is based on its difficulty level among English speakers.
Linguists believe that languages that belong to Group IV/V are the hardest language in the world, requiring 2,200 hours or 88 weeks of dedicated learning to gain professional fluency.
Which is the Most Difficult Language in the World?
Mandarin Chinese has been widely acknowledged by linguists and institutions providing language courses as the toughest language to learn for native English speakers.
First, the writing system in this language uses characters rather than an alphabet, thus posing great challenges for learners who have to memorize numerous characters.
Secondly, Mandarin is a tonal language whereby one cannot simply change the way they pronounce some words since even a slight change can entirely change the meaning of the word.
Besides, the two languages are dissimilar in several aspects such as vocabulary, grammar rules, and sentence structures.
As reported by research conducted on foreign language acquisition and FSI classifications of the time necessary to master a language, learners require approximately 2,200 hours of study to attain professional proficiency. Due to these complexities, many students seek assignment help when working on Mandarin language studies and related academic tasks.
Due to all these features, Mandarin is always rated as the Hardest Language in the world.
Hardest Languages to Learn for English Speakers
The following are considered the most difficult languages to learn for native English speakers:
Mandarin Chinese
Arabic
Japanese
Korean
Cantonese
Finnish
Russian
Polish
Icelandic
Hungarian
What Makes a Language Difficult to Learn?
The level of difficulty of a language usually depends on three important aspects, which include pronunciation, writing system, and grammar. Languages that differ considerably from one’s native language tend to be more difficult.
Pronunciation Problems
The most difficult language in the world have certain sounds or tones that cannot be easily learned by an English-speaking person. For instance, Mandarin is a tonal language where each sound may alter the meaning of a word entirely. Additionally, Arabic is distinguished by special throat sounds.
Complicated Writing System
Difficult languages usually have complex writing systems that vary greatly from the standard English alphabet. For example, the process of mastering Mandarin involves learning about thousands of characters, whereas Japanese has at least three writing systems (Hiragana, Katakana, Kanji). Besides, the Arabic writing system is complicated by its right-to-left direction.
Grammar Difficulties
The hardest language in world is characterized by complicated grammatical features. For instance, Japanese and Korean languages require different sentence structures to be used compared to English. Moreover, Arabic has plenty of verb forms that complicate the learning process.
Fastest Ways to Learn Difficult Languages
To master the Hardest Language in the world, it is important to be consistent and use the right methods.
Learn Popular Words First
Learning around 100-200 popular words and expressions will help you communicate effectively.
Practice Listening and Speaking Every Day
Consistent listening and speaking practice will make it easier to understand and pronounce words correctly.
Utilize Technology to Your Advantage
There are lots of free language learning tools on your smartphone and other online sources.
Speak With Native Speakers
Communicating with native speakers is one of the best ways to achieve fluency.
Be Consistent
It is better to spend about 15-20 minutes practicing every day rather than spending many hours once a week.
Conclusion ( Hardest Language in the World)
The hardest language in the world varies from person to person and largely depends on your native language and learning background. However, languages such as Mandarin Chinese, Arabic, Japanese, Korean, and Cantonese are often ranked among the hardest languages in the world due to their complex writing systems, grammar, and pronunciation.
Although these are considered some of the most difficult languages to learn, consistent practice, patience, and the right learning approach can help anyone achieve fluency over time.
Frequently Asked Questions (People Also Ask)
What is the hardest language in the world?
The Mandarin Chinese language is believed to be the hardest language in the world since it has complex tonal pronunciation and script, along with other challenging features.
Which are the hardest languages in the world?
The languages that fall under the category of being the most difficult language in the world include Mandarin Chinese, Arabic, Japanese, Korean, Cantonese, Finnish, Russian, Polish, Icelandic, and Hungarian.
How long does it take to learn the hardest languages?
Languages that can be considered the most difficult to learn will require about 2,200 hours to reach professional-level fluency.
Is Arabic harder than Japanese?
Both these languages fall under the category of being the Hardest Language in the world; however, Japanese requires more effort since it has three different writing systems.
Is Korean one of the hardest languages in the world?
Korean is considered one of the hardest language in the world because of its grammar, honorifics, and sentence structures.
Have you ever wondered which is the hardest language in the world? When thinking about learning a new language, whether it’s for studying abroad, career reasons, or just cultural exploration, people often wonder about the difficulty.
With more than 7,000 languages spoken globally, some are relatively easy to learn, while others can take years of dedicated practice to master. This is why many learners search for the hardest languages in the world before starting their language-learning journey.
The difficulty of a language depends on factors such as grammar, pronunciation, writing systems, vocabulary, and cultural nuances. According to the Foreign Service Institute (FSI), languages such as Mandarin Chinese, Arabic, Japanese, Korean, and Cantonese are among the most difficult to learn, often requiring up to 2,200 hours of study to achieve professional proficiency.
In this guide, we will explore the hardest languages in the world list, understand what makes certain languages challenging, and discover the top 20 hardest languages in the world based on language difficulty rankings and expert research.
Experience Live Classes
Top 20 Hardest Language in the World to Learn in 2026-2027
According to language experts and FSI language difficulty rankings, this is the hardest language in the world list:
1. Mandarin Chinese (Hardest Language in the World)
Learning Time: 2,200+ hours
Native Speakers: 1.1+ billion
It is commonly believed that Mandarin Chinese is the most difficult language in the world for English speakers to learn. There is no alphabet in this language, which implies that one needs to remember many characters in order to be able to read and write in it. Another peculiarity about Mandarin Chinese is that it is a tonal language.
Why Mandarin is Hardest Language in the world:
2. Arabic
Estimated Time: 2,200+ hours
Native Speakers: 310+ million
The Arabic language is one of the most difficult languages to learn due to its unique script, which is totally different from all others. This language is written from right to left, and short vowels are usually not used. Moreover, speaking Arabic varies from one country to another.
Why Arabic is difficult:
3. Japanese
Learning Time: 2,200+ hours
Native Speakers: 123+ million
Japanese is frequently listed as one of the Hardest Language in the world to learn since the language entails learning three sets of writing systems – namely, Hiragana, Katakana, and Kanji. Japanese is also distinguished by various levels of politeness depending on the context.
Why Japanese is difficult to learn:
4. Korean
Estimated Time: 2,200+ hours
Native Speakers: 77+ million
The Korean language has gained popularity in many parts of the world because of its music and dramas, but it is among the most challenging languages to learn. The Korean language has a different grammar from the English language.
Why Korean is difficult Language in the world to learn:
5. Cantonese
Learning Time: 2,200+ hours
Cantonese is a commonly spoken language in Hong Kong and other parts of Southern China. Cantonese is one of the most difficult languages to learn due to its numerous tones as compared to Mandarin.
Why Cantonese is the most difficult language in the world:
6. Finnish
Estimated Learning Time: 1,100+ hours
Native Speakers: 5.5+ million
Finnish is considered one of the hardest languages to learn in Europe. It falls under the Uralic language group and shares very few similarities with English. It is very difficult for learners because of the complex grammar and vocabulary.
Why Finnish is difficult:
7. Polish
Learning Time: 1,100+ hours
Native Speakers: 45+ million
Polish is one of the Hardest Language in the world to learn when it comes to pronunciation and grammar. The use of consonant clusters and changes in the ending letters of words makes it extremely challenging for non-native speakers.
Why Polish is the most difficult language in the world:
8. Russian
Learning Time: 1,100+ hours
Native Speakers: 258+ million
The Russian language makes use of the Cyrillic alphabet, an unknown language for many people. Besides, the nouns and adjectives in Russian have different forms based on how they are used in the sentence.
Why Russian is the Hardest Language to Learn:
9. Icelandic
Estimated Learning Time: 1,100+ hours
Native Speakers: 370,000+
The Icelandic language has retained many grammatical structures from the Viking Age. The language comprises complicated noun structures and extensive vocabulary, which may prove challenging for foreigners.
Why Icelandic is difficult to learn:
10. Hungarian
Learning Time: 1,100+ hours
Native Speakers: 14+ million
Hungarian also belongs to the Uralic language family and uses very few words similar to English words. The language consists of long words with many suffixes, making it one of the most challenging languages to learn.
Why Hungarian is difficult to learn:
11. Navajo
Navajo language is well known for its very complex grammatical system. A verb in Navajo language can carry as much meaning as an entire sentence in the English language.
Why Navajo is difficult:
12. Vietnamese
Learning Time: 1,100+ hours
Native Speakers: 85+ million
Vietnamese is written using the Latin script, but pronunciation is still hard since the language is tonal. Regional dialects also vary when it comes to vocabulary and accent.
Why Vietnamese is the Hardest Language in the world to learn:
13. Turkish
Turkish has grammatical logic but forms long words by attaching suffixes to a root word. There is also a unique sentence structure.
Why Turkish is the most difficult language in the world:
14. Thai
Estimated Learning Time: 1,100+ hours
Native Speakers: 60+ million
Thai has a distinctive writing system with a tonal pattern of pronunciation. The reading aspect is challenging for learners due to the lack of spacing between words in written Thai.
Why Thai is difficult:
15. Greek
Greek uses a distinct alphabet and has a grammatical structure quite different from that of English. Noun genders and verbs have to be learned as well by students.
Why Greek is a difficult Language to learn:
16. Persian (Farsi)
Learning Time: 1,100+ hours
Native Speakers: 62+ million
Persian is easier compared to other Middle Eastern languages; however, learning the language requires a student to learn the use of a new alphabet as well as sentence structure.
Why Persian is difficult:
17. Hindi
Estimated Time: 1,100+ hours
Native Speakers: 600+ million (including second-language speakers)
It is among the most spoken languages in the world. The students face difficulties with the Devanagari script and gender-based grammar in their initial stage of learning.
Why Hindi is the Hardest Language in the world to learn:
18. Czech
The Czech language features complicated grammar and pronunciation. It utilizes several cases in nouns and different forms of verbs.
Why Czech is difficult:
19. Serbian
Serbian is unique in that it has two official scripts – Latin and Cyrillic. One must be aware of a system of grammar rules that incorporates many cases and verb conjugations.
Why Serbian is difficult to learn:
20. Hebrew
Hebrew is a language that combines a very old alphabet with contemporary speaking. It is read from right to left, and the omission of vowels in common texts makes comprehension difficult.
Why Hebrew is difficult:
How Long to Learn the Hardest Languages? FSI Language Difficulty Rankings
According to the FSI, the number of hours required to learn a language is based on its difficulty level among English speakers.
Linguists believe that languages that belong to Group IV/V are the hardest language in the world, requiring 2,200 hours or 88 weeks of dedicated learning to gain professional fluency.
Which is the Most Difficult Language in the World?
Mandarin Chinese has been widely acknowledged by linguists and institutions providing language courses as the toughest language to learn for native English speakers.
First, the writing system in this language uses characters rather than an alphabet, thus posing great challenges for learners who have to memorize numerous characters.
Secondly, Mandarin is a tonal language whereby one cannot simply change the way they pronounce some words since even a slight change can entirely change the meaning of the word.
Besides, the two languages are dissimilar in several aspects such as vocabulary, grammar rules, and sentence structures.
As reported by research conducted on foreign language acquisition and FSI classifications of the time necessary to master a language, learners require approximately 2,200 hours of study to attain professional proficiency. Due to these complexities, many students seek assignment help when working on Mandarin language studies and related academic tasks.
Due to all these features, Mandarin is always rated as the Hardest Language in the world.
Hardest Languages to Learn for English Speakers
The following are considered the most difficult languages to learn for native English speakers:
What Makes a Language Difficult to Learn?
The level of difficulty of a language usually depends on three important aspects, which include pronunciation, writing system, and grammar. Languages that differ considerably from one’s native language tend to be more difficult.
The most difficult language in the world have certain sounds or tones that cannot be easily learned by an English-speaking person. For instance, Mandarin is a tonal language where each sound may alter the meaning of a word entirely. Additionally, Arabic is distinguished by special throat sounds.
Difficult languages usually have complex writing systems that vary greatly from the standard English alphabet. For example, the process of mastering Mandarin involves learning about thousands of characters, whereas Japanese has at least three writing systems (Hiragana, Katakana, Kanji). Besides, the Arabic writing system is complicated by its right-to-left direction.
The hardest language in world is characterized by complicated grammatical features. For instance, Japanese and Korean languages require different sentence structures to be used compared to English. Moreover, Arabic has plenty of verb forms that complicate the learning process.
Fastest Ways to Learn Difficult Languages
To master the Hardest Language in the world, it is important to be consistent and use the right methods.
Learn Popular Words First
Learning around 100-200 popular words and expressions will help you communicate effectively.
Practice Listening and Speaking Every Day
Consistent listening and speaking practice will make it easier to understand and pronounce words correctly.
Utilize Technology to Your Advantage
There are lots of free language learning tools on your smartphone and other online sources.
Speak With Native Speakers
Communicating with native speakers is one of the best ways to achieve fluency.
Be Consistent
It is better to spend about 15-20 minutes practicing every day rather than spending many hours once a week.
Conclusion ( Hardest Language in the World)
The hardest language in the world varies from person to person and largely depends on your native language and learning background. However, languages such as Mandarin Chinese, Arabic, Japanese, Korean, and Cantonese are often ranked among the hardest languages in the world due to their complex writing systems, grammar, and pronunciation.
Although these are considered some of the most difficult languages to learn, consistent practice, patience, and the right learning approach can help anyone achieve fluency over time.
Frequently Asked Questions (People Also Ask)
What is the hardest language in the world?
The Mandarin Chinese language is believed to be the hardest language in the world since it has complex tonal pronunciation and script, along with other challenging features.
Which are the hardest languages in the world?
The languages that fall under the category of being the most difficult language in the world include Mandarin Chinese, Arabic, Japanese, Korean, Cantonese, Finnish, Russian, Polish, Icelandic, and Hungarian.
How long does it take to learn the hardest languages?
Languages that can be considered the most difficult to learn will require about 2,200 hours to reach professional-level fluency.
Is Arabic harder than Japanese?
Both these languages fall under the category of being the Hardest Language in the world; however, Japanese requires more effort since it has three different writing systems.
Is Korean one of the hardest languages in the world?
Korean is considered one of the hardest language in the world because of its grammar, honorifics, and sentence structures.
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