Unintelligible language is impossible to understand, for example because it is not written or pronounced clearly, or because its meaning is confused or complicated. adj
He muttered something unintelligible..., ...the unintelligible phrases and images of his earlier poems.
Translation English Cobuild Collins Dictionary
double Dutch (Brit. informal) Greek (informal) illegible, inarticulate, incoherent, incomprehensible, indecipherable, indistinct, jumbled, meaningless, muddled, unfathomable
clear, coherent, comprehensible, intelligible, legible, lucid, understandable
English Collins Dictionary - English synonyms & Thesaurus
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