Entry 2 senses Webster, 1913 muted · IPA /mjˈuːtɪd/ 01 adj. same as quiet; as, the muted atmosphere of a church. Opposite of noisy. 1. same as quiet; as, the muted atmosphere of a church. Opposite of noisy. See: quiet 2. softened; rendered less loud or harsh; -- of sounds and instruments which produce sounds; as, muted trumpets. Syn. hushed. — Syn. -- dull, muffled, softened.