There's no single "hardest" language, as difficulty depends on your native tongue, but Mandarin Chinese, Arabic, Japanese, and Korean are consistently ranked as extremely challenging for English speakers due to complex writing systems (logographs/multiple scripts), tonal variations, and unique grammar/honorifics, while languages like Finnish, Hungarian, Polish, and Basque pose difficulties with extensive case systems, agglutination, and complex grammar rules. The Foreign Service Institute (FSI) classifies these East Asian and Semitic languages as Category IV or V, requiring the most time for English speakers to master.
Since I am writing this article in English, here are the top 10 hardest languages to learn in the world for native English speakers:
The hardest languages for English speakers often include Mandarin Chinese, Arabic, Japanese, Korean, and complex European languages like Hungarian, Finnish, Icelandic, and Slavic tongues such as Polish, Czech, and Russian, due to vastly different writing systems (like characters or right-to-left scripts) and intricate grammar, tones, or case systems that demand significant time (around 44 weeks/1100+ hours) for professional fluency, according to Foreign Service Institute (FSI) rankings and Mango Languages.
Top 10 Most Difficult Languages to Learn
The top 5 languages in the world by total speakers (native + non-native) are generally English, Mandarin Chinese, Hindi, Spanish, and French, though rankings vary slightly by source and year, with Arabic also consistently near the top. English leads significantly due to its global use, followed by massive native speakers in Mandarin, but Hindi, Spanish, and French round out the top tier with hundreds of millions of speakers each.
When Bolivia adopted its 2009 constitution, 37 languages were elevated to “official” status.
Powell Alexander Janulus (born 1939) is a Canadian polyglot who lives in White Rock, British Columbia, and entered the Guinness World Records in 1985 for fluency in 42 languages.
The top 10 easiest languages to learn, according to experts
Generally speaking, Japanese is more difficult than Chinese when it comes to grammar. Mandarin Chinese is an analytical language, like English, and each word has only one form, no matter how it's being used in a sentence. It's also a subject-verb-object language, like English.
Frisian is the closest language to English
The closest language to English is Frisian. This Germanic language is spoken by about 400,000 people in an area historically known as Frisia—now within the modern regions of Netherlands and Germany.
They concluded that the ability to learn a new language, at least grammatically, is strongest until the age of 18 after which there is a precipitous decline. To become completely fluent, however, learning should start before the age of 10.
20 Easiest Languages to Learn
German is more difficult at the beginning because of its convoluted grammar rules, but once learners get the hang of it they're good to go. Most language learners can become proficient in Spanish in about 600 hours of study; German students can reach the same level in three times as long: 1,800 hours.
Our verdict. In this category, Korean is easier. While there are more speech levels in Korean, once you have mastered the conjugation patterns, you just need to learn the rules on how to use the verbs.
Here's the spoiler: Mandarin Chinese, Spanish, English, Arabic, French, German, Japanese, Portuguese, Russian, and Hindi are the top 10 most useful languages to learn in today's globalized world. But why these specific languages?
Top 10 Easiest Languages for English Speakers to Learn
There's no single "hardest" language, but Mandarin Chinese is consistently ranked #1 for English speakers due to its tonal nature (four tones change word meanings) and complex logographic writing system requiring thousands of characters. Other top contenders often cited include Arabic (right-to-left script, complex sounds, grammar) and Japanese (multiple writing systems like Kanji, Hiragana, Katakana, plus honorifics). The difficulty depends heavily on your native language, with languages like Tibetan, Estonian, and Polish also challenging learners with unique grammar or cases.
I wouldn't say N1 is equivalent to "working fluently," but 10,000 words should be more than enough to give one a working competence in the language, provided you can produce (not just recognize and comprehend) with that language.
China dominates in raw numbers across the board, fielding a massive 2 million troops and a huge inventory of armor and aircraft, supported by a $230B budget. Japan's Self-Defense Forces, while smaller (240K troops, $53B budget), are known for their high-tech, modern equipment and training.
According to Ethnologue, English is the most spoken language in the world, including native and non-native speakers. Like Latin or Greek at the time, English has become the world's common language. It is the default language in international business, tourism, technology, and much more.
Toki Pona is an isolating language with only 14 phonemes and an underlying feature of minimalism. It focuses on simple, near-universal concepts to maximize expression from very few words.
Fluency means you've reached 10,000+ words and have reached the highest level of mastering a language without being a native speaker. At this level, you can apply your skills to the working world and find employment in translation or interpretation fields.
She's said in interviews that she's tried to learn Spanish and French a few times but never did. There are videos of her saying a few words in at least Spanish, French , Japanese, German, Welsh, Gaelic, etc. during concerts or interviews but it's just memorized words.
Papua New Guinea has the most languages in the world – over 800. Indonesia isn't far behind with over 700. Languages are spread unequally throughout the world.
Nineteen-year-old Mahmood Akram from India has amazed the world by mastering 400 languages while simultaneously pursuing multiple university degrees. His linguistic journey began early under the guidance of his father, a linguistics expert, and by the age of six, he had already surpassed his mentor's knowledge.