grumble

nouns

a loud low dull continuous noise

"they heard the rumbling of thunder"

grumble, grumbling, rumble, rumbling

a complaint uttered in a low and indistinct tone

grumble, grumbling, murmur, murmuring, mutter, muttering

show one's unhappiness or critical attitude

"He scolded about anything that he thought was wrong"; "We grumbled about the increased work load"

grouch, grumble, scold

is derived from

make complaining remarks or noises under one's breath

"she grumbles when she feels overworked"

croak, gnarl, grumble, murmur, mutter

is derived from

is derived from

to utter or emit low dull rumbling sounds

"he grumbled a rude response"; "Stones grumbled down the cliff"

growl, grumble, rumble

is derived from

make a low noise

"rumbling thunder"

grumble, rumble

is derived from