sound out vs utter

sound out is not an adjective while utter is an adjective.

Word	Noun	Adjective	Verb	Adverb
sound out	No	No	Yes	No
utter	No	Yes	Yes	No

sound out (adjective)	utter (adjective)
	complete and absolute
	without qualification; used informally as (often pejorative) intensifiers

sound out (verb)	utter (verb)
try to learn someone's opinions and intentions	express in speech
speak, pronounce, or utter in a certain way	articulate; either verbally or with a cry, shout, or noise
	express audibly; utter sounds (not necessarily words)
	put into circulation