/ Thesaurus / S Synonyms of sulphuric Find synonyms for: Adjective1. sulphuric, sulfuricusage: of or relating to or containing sulfur; "sulphuric esters"WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: pundit Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language