unconventional vs sex activity

unconventional is not a noun while sex activity is a noun.

Word	Noun	Adjective	Verb	Adverb
unconventional	No	Yes	No	No
sex activity	Yes	No	No	No

unconventional (noun)	sex activity (noun)
	activities associated with sexual intercourse

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