adj. 25B6; adjective
unintelligible sounds : INCOMPREHENSIBLE, indiscernible, mumbled, indistinct, unclear, slurred, inarticulate, incoherent, garbled.
unintelligible graffiti : ILLEGIBLE, indecipherable, unreadable.
UNINTELLIGIBLE
Meaning of UNINTELLIGIBLE in English
Concise Oxford thesaurus English vocabulary. Краткий оксфордский словарь английского языка тезаурус. 2012