/ Thesaurus / H Synonyms of hypnogogic Find synonyms for: Adjective1. soporific, soporiferous, somniferous, somnific, hypnogogic, hypnagogic, depressant (vs. stimulative)usage: sleep inducingWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: opulent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language