muttering Meaning, Definition & Usage

noun a low continuous indistinct sound; often accompanied by movement of the lips without the production of articulate speech
murmuring; mutter; murmuration; murmur; mussitation.
noun a complaint uttered in a low and indistinct tone
murmuring; grumbling; grumble; mutter; murmur.
verb talk indistinctly; usually in a low voice
mussitate; maunder; mumble; mutter.
verb make complaining remarks or noises under one's breath
grumble; gnarl; mutter; murmur; croak.
- she grumbles when she feels overworked