promiscuous vs sluttish

promiscuous and sluttish both are adjectives.

Word	Noun	Adjective	Verb	Adverb
promiscuous	No	Yes	No	No
sluttish	No	Yes	No	No

As adjectives, promiscuous and sluttish are synonyms defined as:

Other synonyms of promiscuous include easy, light, loose, wanton.

promiscuous (adjective)	sluttish (adjective)
not selective of a single class or person	casual and unrestrained in sexual behavior
casual and unrestrained in sexual behavior	characteristic of or befitting a slut or slattern; used especially of women