Synonyms of grumbling

Noun

1. rumble, rumbling, grumble, grumbling, noise

usage: a loud low dull continuous noise; "they heard the rumbling of thunder"

2. grumble, grumbling, murmur, murmuring, mutter, muttering, complaint

usage: a complaint uttered in a low and indistinct tone

Verb

1. grouch, grumble, scold, complain, kick, plain, sound off, quetch, kvetch

usage: show one's unhappiness or critical attitude; "He scolded about anything that he thought was wrong"; "We grumbled about the increased work load"

2. murmur, mutter, grumble, croak, gnarl, complain, kick, plain, sound off, quetch, kvetch

usage: make complaining remarks or noises under one's breath; "she grumbles when she feels overworked"

3. grumble, growl, rumble, utter, emit, let out, let loose

usage: to utter or emit low dull rumbling sounds; "he grumbled a rude response"; "Stones grumbled down the cliff"

4. rumble, grumble, sound, go

usage: make a low noise; "rumbling thunder"

Adjective

1. grumbling, rumbling, full (vs. thin)

usage: continuous full and low-pitched throbbing sound; "the rumbling rolling sound of thunder"