verb
mutter
MUH-tuh
verb
1
To speak quietly and indistinctly, especially in complaint or annoyance.
"He muttered something under his breath and walked off."
"She kept muttering about the traffic the whole ride home."
noun
1
A low, indistinct sound of speech.
"All he could hear from the next room was a faint mutter."
How to Use Mutter
Learner’s notesIn plain EnglishTo speak in a low, unclear voice, often when complaining.
Common pairings
mutter under your breath
mutter a complaint
Word Forms
muttered past tense, mutters plural, mutters singular
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Etymology
From Middle English muteren, an imitative word echoing the sound of low, murmured speech.