noun
- the act or sound of speaking in a low, unclear voice
verb
- speaking in a low, unclear voice, often expressing dissatisfaction or complaint
Usage: present participle of ‘mutter’
Examples
- She was muttering complaints under her breath during the meeting.
- I could hear him muttering something about the weather.
- Stop muttering and speak up so we can hear you.
- The students were muttering among themselves before class started.
- There was a constant muttering from the back of the room.
- His muttering made it impossible to understand what he was saying.
- The old man sat muttering to himself on the park bench.