Grumble

Noun

 * 1)  A low thundering, rumbling or growling sound
 * 2) The sound made by a hungry stomach
 * 3) A complaint

Derived terms

 * grumbly

Verb

 * 1)  To make a low, growling or rumbling noise, like a hungry stomach or certain animals.
 * 2)  To complain.
 * 3)  To utter in a grumbling fashion.

Derived terms

 * grumbler

Adverbs for Grumble
captiously; discontentedly; pessimistically; forebodingly; cantankerously; vindictively; monotonously; gloomily.

Thesaurus
air a grievance, beef, belch, bellyache, bitch, blare, blat, boom, booming, brawl, bray, burr, buzz, cackle, cannonade, caw, chirr, clamor, clang, clangor, clank, clash, complain, crab, craunch, croak, crump, crunch, echo, fret, fret and fume, fuss, gnarl, grind, gripe, groan, grouch, grouse, growl, growling, grumbling, grunt, hiss, holler, howl, jangle, jar, kick, lodge a complaint, moan, murmur, mutter, peal, raise a howl, rasp, reboation, rebound, reecho, register a complaint, resound, resounding, reverberation, roar, roll, rumble, rumbling, scold, scranch, scrape, scratch, scrunch, snap, snarl, snore, spit, squawk, take on, thunder, thundering, twang, whine, yap, yelp