/ Thesaurus / S Synonyms of sedative hypnotic Find synonyms for: Noun1. sedative-hypnotic, sedative-hypnotic drug, sedative, sedative drug, depressant, downerusage: a sedative that depresses activity of the central nervous system and reduces anxiety and induces sleepWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: acerbity Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language