supersonic

English Thesaurus

1. having frequencies above those of audible sound (adj.all)

similar	:	inaudible, unhearable,
definition	:	impossible to hear; imperceptible by the ear (adj.all)

derivation	:	ultrasound,
definition	:	very high frequency sound; used in ultrasonography (noun.phenomenon)

2. (of speed) greater than the speed of sound in a given medium (especially air) (adj.all)

antonym	:	sonic, transonic,
definition	:	(of speed) having or caused by speed approximately equal to that of sound in air at sea level (adj.all)

antonym	:	subsonic,
definition	:	(of speed) less than that of sound in a designated medium (adj.all)

3. having frequencies above those of audible sound (adj.all)

derivation	:	ultrasound,
definition	:	very high frequency sound; used in ultrasonography (noun.phenomenon)

4. (of speed) greater than the speed of sound in a given medium (especially air) (adj.all)

antonym	:	sonic, transonic,
definition	:	(of speed) having or caused by speed approximately equal to that of sound in air at sea level (adj.all)

antonym	:	subsonic,
definition	:	(of speed) less than that of sound in a designated medium (adj.all)