Breadcrumb Home > Thesaurus > M Synonyms of mouldy Find synonyms for: Adjective1. moldy, mouldy, musty, stale (vs. fresh)usage: covered with or smelling of mold; "moldy bread"; "a moldy (or musty) odor"WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of mouldy (Dictionary) ✖ Related Content Daily Word Quiz: deracinate Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language