vociferate vs utter

vociferate is not an adjective while utter is an adjective.

Word	Noun	Adjective	Verb	Adverb
vociferate	No	No	Yes	No
utter	No	Yes	Yes	No

As verbs, utter is a hypernym of vociferate; that is, utter is a word with a broader meaning than vociferate:

Other hypernyms of vociferate include express, give tongue to, verbalise, verbalize.

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

vociferate (verb)	utter (verb)
utter in a very loud voice	express in speech
	articulate; either verbally or with a cry, shout, or noise
	express audibly; utter sounds (not necessarily words)
	put into circulation