deviant vs unnatural

deviant is a noun but unnatural is not a noun.

Word	Noun	Adjective	Verb	Adverb
deviant	Yes	Yes	No	No
unnatural	No	Yes	No	No

deviant (noun)	unnatural (noun)
a person whose behavior deviates from what is acceptable especially in sexual behavior

deviant (adjective)	unnatural (adjective)
markedly different from an accepted norm	not in accordance with or determined by nature; contrary to nature
	not normal; not typical or usual or regular or conforming to a norm
	speaking or behaving in an artificial way to make an impression