/ Thesaurus / B Synonyms of bass drum Find synonyms for: Noun1. bass drum, gran casa, drum, membranophone, tympanusage: a large drum with two heads; makes a sound of indefinite but very low pitchWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: apogee Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language