Synonyms: impenetrable
Definition: impossible to understand
Usage: impenetrable jargon
Similar words: incomprehensible, uncomprehensible
Definition: difficult to understand
Usage: the most incomprehensible thing about the universe is that it is comprehensible- A. Einstein
Synonyms: impenetrable
Definition: not admitting of penetration or passage into or through
Usage: an impenetrable fortress; impenetrable rain forests
Definition: hard to pass through because of dense growth
Usage: dense vegetation; thick woods
Synonyms: dense, impenetrable, heavy
Definition: permitting little if any light to pass through because of denseness of matter
Usage: dense smoke; heavy fog; impenetrable gloom
Similar words: thick
Definition: relatively dense in consistency
Usage: thick cream; thick soup; thick smoke; thick fog