Synonyms for (adjective) unintelligible

Synonyms: opaque, unintelligible

Definition: not clearly understood or expressed

Similar words: incomprehensible, uncomprehensible

Definition: difficult to understand

Usage: the most incomprehensible thing about the universe is that it is comprehensible- A. Einstein


Synonyms: unintelligible

Definition: poorly articulated or enunciated, or drowned by noise

Usage: unintelligible speech

Similar words: thick, slurred

Definition: spoken as if with a thick tongue

Usage: the thick speech of a drunkard; his words were slurred