sexual practice vs obscenely

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

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

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

sexual practice (adverb)	obscenely (adverb)
	in a lewd and obscene manner
	to an obscene degree