supersonic vs ultrasonic

supersonic and ultrasonic both are adjectives.

Word	Noun	Adjective	Verb	Adverb
supersonic	No	Yes	No	No
ultrasonic	No	Yes	No	No

As adjectives, supersonic and ultrasonic are synonyms defined as:

supersonic and ultrasonic: having frequencies above those of audible sound

supersonic (adjective)	ultrasonic (adjective)
(of speed) greater than the speed of sound in a given medium (especially air)	having frequencies above those of audible sound
having frequencies above those of audible sound