/ Thesaurus / H Synonyms of hydrogen sulfide Find synonyms for: Noun1. hydrogen sulfide, sulfide, sulphideusage: a sulfide having the unpleasant smell of rotten eggsWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: inutiae Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language