nonfunctional vs ornamental

nonfunctional is not a noun while ornamental is a noun.

Word	Noun	Adjective	Verb	Adverb
nonfunctional	No	Yes	No	No
ornamental	Yes	Yes	No	No

nonfunctional (noun)	ornamental (noun)
	any plant grown for its beauty or ornamental value

nonfunctional (adjective)	ornamental (adjective)
not having or performing a function	serving an esthetic rather than a useful purpose
not performing or able to perform its regular function