Synonyms for mouldy Updated: 02-05-2026 by Wikilanguages.net share facebook share twitter Some common synonyms of mouldy are: mouldy [a.] Musty, mildewed, fusty, decaying. All 🔎︎ Synonyms of mouldymouldy [a.] Musty, mildewed, fusty, decaying. Read More about: mouldy