eccentric vs unconventional

eccentric is a noun but unconventional is not a noun.

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

eccentric (noun)	unconventional (noun)
a person with an unusual or odd personality
a person of a specified kind (usually with many eccentricities)

eccentric (adjective)	unconventional (adjective)
not having a common center; not concentric	not conforming to accepted rules or standards
conspicuously or grossly unconventional or unusual	not conventional or conformist
	not conforming to legality, moral law, or social convention