abnormal vs deviate

abnormal is not a noun while deviate is a noun.

Word	Noun	Adjective	Verb	Adverb
abnormal	No	Yes	No	No
deviate	Yes	Yes	Yes	No

abnormal (noun)	deviate (noun)
	a person whose behavior deviates from what is acceptable especially in sexual behavior

abnormal (adjective)	deviate (adjective)
not normal; not typical or usual or regular or conforming to a norm	markedly different from an accepted norm
departing from the normal in e.g. intelligence and development
much greater than the normal

abnormal (verb)	deviate (verb)
	turn aside; turn away from
	cause to turn away from a previous or expected course
	be at variance with; be out of line with