/ Thesaurus / S Synonyms of sex activity Find synonyms for: Noun1. sexual activity, sexual practice, sex, sex activity, bodily process, body process, bodily function, activityusage: activities associated with sexual intercourse; "they had sex in the back seat"WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: nefarious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language