Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English


English definition of “mutter”


verb [I, T]     /ˈmʌtər/
B2 to speak quietly so that your voice is difficult to hear , often when complaining about something: She walked past me, muttering to herself. He muttered something about the restaurant being too expensive .Ways of speakingWays of talking
mutter noun [C]
(Definition of mutter verb from the Cambridge Learner's Dictionary © Cambridge University Press)

Definitions of “mutter” in other dictionaries

Word of the Day


a good knowledge of something, or the fact that you know it so well

Word of the Day


Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More