obscene vs sexual practice

obscene is not a noun while sexual practice is a noun.

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

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

obscene (adjective)	sexual practice (adjective)
suggestive of or tending to moral looseness
designed to incite to indecency or lust
offensive to the mind