Main entry: intelligible
Definition: well articulated or enunciated, and loud enough to be heard distinctly
Usage: intelligible pronunciation
Antonyms: unintelligible
Definition: poorly articulated or enunciated, or drowned by noise
Main entry: apprehensible, perceivable, understandable, graspable, intelligible
Definition: capable of being apprehended or understood
Antonyms: incomprehensible, uncomprehensible
Definition: difficult to understand