Synonyms of unintelligible

Adjective

1. unintelligible (vs. intelligible), slurred, thick, incomprehensible#2, uncomprehensible

usage: poorly articulated or enunciated, or drowned by noise; "unintelligible speech"

2. opaque, unintelligible, incomprehensible (vs. comprehensible), uncomprehensible

usage: not clearly understood or expressed

Definition and meaning of unintelligible (Dictionary)