/ Thesaurus / B Synonyms of bathing cap Find synonyms for: Noun1. bathing cap, swimming cap, capusage: a tight-fitting cap that keeps hair dry while swimmingWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: devout Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language