/ Thesaurus / Q Synonyms of quinine water Find synonyms for: Noun1. tonic, tonic water, quinine water, soft drinkusage: lime- or lemon-flavored carbonated water containing quinineWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: profiterole Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language