promiscuous vs sexual practice

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

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

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

promiscuous (adjective)	sexual practice (adjective)
not selective of a single class or person
casual and unrestrained in sexual behavior