unconventional vs maverick

unconventional is not a noun while maverick is a noun.

Word	Noun	Adjective	Verb	Adverb
unconventional	No	Yes	No	No
maverick	Yes	Yes	No	No

unconventional (noun)	maverick (noun)
	an unbranded range animal (especially a stray calf); belongs to the first person who puts a brand on it
	someone who exhibits great independence in thought and action

unconventional (adjective)	maverick (adjective)
not conforming to accepted rules or standards	independent in behavior or thought
not conventional or conformist
not conforming to legality, moral law, or social convention