noun
- the act of complaining in a low, continuous voice
- a low, rumbling sound
adjective
- expressing dissatisfaction in a low voice
Examples
- The constant grumbling from the back seat made the car ride unpleasant.
- We could hear the grumbling of thunder in the distance.
- His grumbling stomach reminded him it was time for lunch.
- The grumbling employees gathered around the water cooler.
- She ignored her brother’s grumbling about doing chores.
- The grumbling sound of the old engine worried the mechanic.
- Despite their grumbling, the students completed the assignment.