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Navajo - For English-speakers, this is an especially difficult language to learn. Navajo is a verb-centered language and the majority of English adjectives don't even have a direct translation to the Native American language, according to Unbabel.

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Finnish - In a category ranked from one to five—one being languages most similar to English and five being languages that are exceptionally difficult for English-speakers to learn—Finnish earns a four, according to Effective Language Learning.

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Urdu - If you're planning a trip to Pakistan, Urdu might be a useful language to learn. It's an official language of the country, but be warned: learning Urdu won't be easy!

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Tagalog - Also getting a score of four on the Effective Language Learning list is the official language of the Philippines, Tagalog.

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Georgian - This language is almost entirely only spoken by the people of Georgia.

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Mandarin - This is the most spoken language with roughly a billion Mandarin-speakers in the world, according to Babbel. And it's absolutely one of the hardest to learn!

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Cantonese - Along with Mandarin, Cantonese is also spoken throughout China and is an extremely useful (but difficult) language to learn. It is also spoken in Thailand, Malaysia, and Vietnam.

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Croatian - If you speak Croatian, then good on you! You know one of the world's most difficult languages.

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Sanskrit -

The sacred language of Hinduism is as beautiful as it is hard to learn.

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Polish - Learning Polish is no walk in the park.

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Albanian - Albanian is spoken officially in Kosovo, Macedonia, and, of course, Albania.

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Icelandic - Icelandic is an Indo-European language largely influenced by the languages of Danish and Swedish. 

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Hebrew - Hebrew, which is largely spoken in Israel, is quite difficult to learn.

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Hungarian - Not only spoken in Hungary, this difficult language is also heard in Serbia, Romania, Slovakia, and the Ukraine.

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Persian - Persian, also known as Farsi, scored a four on the difficulty ranking list.

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Basque - Basque is extremely difficult to learn as it is a language isolate, meaning it isn't similar to any other language which makes it that much harder to learn.

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Korean - Korean is also a language isolate. It's hard to learn because of its completely different alphabet and grammatical structure.

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Norwegian - Finally! A language that gets a score of one on the difficulty ranking list. While still a hard language, Norwegian actually has some similarities to English.

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Danish - Mutually intelligible to Norwegian is Danish, the official language of Denmark. 

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Indonesian - Indonesian gets a score of three on the difficulty ranking list. The language is spoken in the Southeast Asian country of Indonesia.

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Thai - Thai has a totally different alphabet, making it extremely hard to learn for English-speakers.

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Vietnamese - Another language with a different alphabet is Vietnamese.

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Arabic - Part of the difficulty with Arabic is that it's a language that is spoken differently depending on where you are. For example, the Arabic spoken in Morocco is different from the Arabic spoken in Egypt or Saudi Arabia.

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Welsh - Welsh is a Celtic language spoken in Wales.

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Gaelic - Also called Scottish Gaelic, it's a Celtic language spoken in Scotland.

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Dutch - Dutch also makes this list. It's spoken in the Netherlands.

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Afrikaans - A daughter language of Dutch is Afrikaans, spoken in South Africa. 

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Slovenian - This language would be useful to learn if you plan on visiting the beautiful European country of Slovenia. Otherwise, very few people outside of Slovenia actually speak Slovenian.

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Japanese - Finally, Japanese. According to Rype, it can take a whopping 88 weeks to learn this East Asian language, making it one of the more difficult!

See also: Foreign foods English speakers love to mispronounce

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