staring vs utter

staring and utter both are adjectives.

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

As adjectives, staring and utter are synonyms defined as:

staring and utter: without qualification; used informally as (often pejorative) intensifiers

staring (adjective)	utter (adjective)
(used of eyes) open and fixed as if in fear or wonder	complete and absolute
without qualification; used informally as (often pejorative) intensifiers	without qualification; used informally as (often pejorative) intensifiers

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