Main entry: opaque
Definition: not transmitting or reflecting light or radiant energy; impenetrable to sight
Usage: opaque windows of the jail; opaque to X-rays
Antonyms: clear
Definition: allowing light to pass through
Antonyms: liquid
Definition: existing as or having characteristics of a liquid; especially tending to flow
Antonyms: gaseous
Definition: existing as or having characteristics of a gas
Antonyms: hollow
Definition: not solid; having a space or gap or cavity
Antonyms: clear
Definition: free from clouds or mist or haze
Main entry: opaque, unintelligible
Definition: not clearly understood or expressed
Antonyms: comprehendible, comprehensible
Definition: capable of being comprehended or understood