unlike vs like

unlike is not a noun while like is a noun.

Word	Noun	Adjective	Verb	Adverb
unlike	No	Yes	No	No
like	Yes	Yes	Yes	No

unlike (noun)	like (noun)
	a kind of person
	a similar kind

unlike (adjective)	like (adjective)
marked by dissimilarity	resembling or similar; having the same or some of the same characteristics; often used in combination
not equal in amount	equal in amount or value
	having the same or similar characteristics
	conforming in every respect

unlike (verb)	like (verb)
	feel about or towards; consider, evaluate, or regard
	to hope, to desire or to prefer to have something, or to do something
	be fond of
	find enjoyable or agreeable
	want to have