cheating vs unfaithful

cheating is a noun but unfaithful is not a noun.

Word	Noun	Adjective	Verb	Adverb
cheating	Yes	Yes	No	No
unfaithful	No	Yes	No	No

cheating (noun)	unfaithful (noun)
a deception for profit to yourself

cheating (adjective)	unfaithful (adjective)
violating accepted standards or rules	not true to duty or obligation or promises
not faithful to a spouse or lover	having sexual relations with someone other than your husband or wife, or your boyfriend or girlfriend
	having the character of, or characteristic of, a traitor
	not trustworthy