hardest languages in the world

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.

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)

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:

  • 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.

Why Russian is the Hardest Language to Learn:

  • Cyrillic script
  • Six grammatical cases
  • Flexible word order
  • Verb aspect system

 

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:

  • 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.

Why Persian is difficult:

  • Arabic-based script
  • Different grammar structure
  • Formal and informal usage
  • New vocabulary patterns

 

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:

  • 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.

Language Category Estimated Study Time Examples
Category I (Easy) 600–750 Hours Spanish, French, Italian, Portuguese
Category II (Moderate) Around 900 Hours German, Indonesian, Malay
Category III (Difficult) Around 1,100 Hours Hindi, Russian, Polish, Turkish, Finnish
Category IV/V (Hardest) Around 2,200 Hours Mandarin Chinese, Arabic, Japanese, Korean, Cantonese

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 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:

  1. Mandarin Chinese
  2. Arabic
  3. Japanese
  4. Korean
  5. Cantonese
  6. Finnish
  7. Russian
  8. Polish
  9. Icelandic
  10. 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.

  1. 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.

  1. 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.

  1. 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.

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