plural of grumbling

(onomatopoeia) A low thundering, rumbling or growling sound. / The sound made by a hungry stomach. / A surly complaint.

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

present participle of grumble

complaining / rumbling

simple past tense and past participle of grumble

plural of grumble

Third-person singular simple present indicative form of grumble

Given to grumbling

A surname.