sexual practice vs unconventional

sexual practice is a noun but unconventional is not a noun.

Word	Noun	Adjective	Verb	Adverb
sexual practice	Yes	No	No	No
unconventional	No	Yes	No	No

sexual practice (noun)	unconventional (noun)
activities associated with sexual intercourse

sexual practice (adjective)	unconventional (adjective)
	not conforming to accepted rules or standards
	not conventional or conformist
	not conforming to legality, moral law, or social convention