Meaning & use
mutter
To speak quietly and unclearly, often while complaining or expressing displeasure under one's breath.
See it in a sentence
He muttered something about the traffic as he walked in twenty minutes late.
She muttered to herself while searching for her missing keys.
A note on using this word
Mutter usually implies both low volume and a slightly negative or complaining tone, unlike mumble, which just means unclear speech without that emotional edge.
Words with a similar meaning
mumblegrumble
Choose a synonym to suit the sentence. Meanings can overlap without being identical.
Words with an opposite meaning
shoutdeclare
Make it your own
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