Definition of "grumble" in English

noun

1. (onomatopoeia) A low thundering, rumbling or growling sound.

2. The sound made by a hungry stomach.

3. A surly complaint.

   • That whiner is never without a grumble to share.

verb

1. (intransitive) To make a low, growling or rumbling noise, like a hungry stomach or certain animals.

   • The distant thunder grumbles.

2. (intransitive) To complain; to murmur or mutter with discontent; to make ill-natured complaints in a low voice and a surly manner.

   • He grumbles about the food constantly, but has yet to learn to cook.

3. (transitive) To utter in a grumbling fashion.