Entry 2 senses Webster, 1913 muffled · IPA /ˈmʌfl̩d/ 01 adj. same as muted; as, muffled drums; the muffled noises of the street. 1. same as muted; as, muffled drums; the muffled noises of the street. See: muted 2. Wrapped up especially for protection or secrecy; as, children muffled almost to the eyebrows. Syn. dull, muted, softened.