/ Thesaurus / U Synonyms of unstoppered Find synonyms for: Adjective1. unstoppered, open (vs. closed)usage: (of a container) having the stopper removed; "whiskey spilled from the unstoppered bottle"WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: feline Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language