Known for tonal complexities and characters, Mandarin is challenging due to its vast vocabulary and intricate writing system.
With a unique script and various dialects, Arabic presents difficulties in its complex grammar and diverse phonology.
A complex writing system involving kanji, hiragana, and katakana, alongside differing levels of formality and honorifics, makes Japanese intricate to learn.
Korean's grammar structure and honorifics, alongside the Hangul script's unique characters, pose challenges for learners.
Renowned for its grammar, Finnish involves agglutination and complex case systems, making it intricate for non-native speakers.
Known for its agglutinative structure and complex grammar, Hungarian poses challenges due to its rich vowel harmony and extensive cases.
Renowned for preserving ancient Norse traditions, Icelandic features archaic vocabulary, intricate grammar, and intricate declensions.
With complex verb structures and a lack of resemblance to European languages, Navajo presents challenges due to its polysynthetic nature and tonal aspects.
Its intricate grammar, diverse cases, and complex verb conjugations make Russian challenging for learners.
Known for its lack of relation to any known language family, Basque's unique grammar and structure present difficulties for learners due to its isolation and complexity.