mutters; muttered; muttering
1
: to speak quietly so that it is difficult for other people to hear what you say
She angrily muttered something about her bad luck.
He muttered an apology.
a muttered comment
She sat practicing her speech, muttering to herself.
2
: to complain in a quiet or indirect way
Some employees are muttering about the changes in the pension plan.
Cite this Entry
“Mutter.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/mutter. Accessed 21 Jun. 2026.
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