felt up vs matte

felt up is not a noun while matte is a noun.

Word	Noun	Adjective	Verb	Adverb
felt up	No	No	Yes	No
matte	Yes	Yes	Yes	No

As verbs, felt up and matte are synonyms defined as:

Other synonyms of felt up include felt, mat, mat up, matt-up, matte up.

felt up (noun)	matte (noun)
	the property of having little or no contrast; lacking highlights or gloss
	a mixture of sulfides that forms when sulfide metal ores are smelted

felt up (adjective)	matte (adjective)
	not reflecting light; not glossy

felt up (verb)	matte (verb)
change texture so as to become matted and felt-like	change texture so as to become matted and felt-like