Definition: not made to sound
Usage: the silent `h' at the beginning of `honor'; in French certain letters are often unsounded
Similar words: inaudible, unhearable
Definition: impossible to hear; imperceptible by the ear
Usage: an inaudible conversation
Synonyms: unfathomed, unplumbed, unsounded, profound
Definition: situated at or extending to great depth; too deep to have been sounded or plumbed
Usage: the profound depths of the sea; the dark unfathomed caves of ocean-Thomas Gray; unplumbed depths of the sea; remote and unsounded caverns
Similar words: deep
Definition: having great spatial extension or penetration downward or inward from an outer surface or backward or laterally or outward from a center; sometimes used in combination
Usage: a deep well; a deep dive; deep water; a deep casserole; a deep gash; deep massage; deep pressure receptors in muscles; deep shelves; a deep closet; surrounded by a deep yard; hit the ball to deep center field; in deep space; waist-deep