GRUMBLING
grumbling, rumbling
(adjective) continuous full and low-pitched throbbing sound; “the rumbling rolling sound of thunder”
grumble, grumbling, murmur, murmuring, mutter, muttering
(noun) a complaint uttered in a low and indistinct tone
rumble, rumbling, grumble, grumbling
(noun) a loud low dull continuous noise; “they heard the rumbling of thunder”
Source: WordNet® 3.1
Verb
grumbling
present participle of grumble
Noun
grumbling (plural grumblings)
complaining
rumbling
Source: Wiktionary
GRUMBLE
Grum"ble, v. i. [imp. & p. p. Grunbled; p. pr. & vb. n. Grumbling.]
Etym: [Cf. LG. grummeln, grumman, D. grommelen, grommen, and F.
grommeler, of German origin; cf. W. grwm, murmur, grumble, surly. sq.
root35. Cf. Grum, Grim.]
1. To murmur or mutter with discontent; to make ill-natured
complaints in a low voice and a surly manner.
L'Avare, not using half his store, Still grumbles that he has no
more. Prior.
2. To growl; to snarl in deep tones; as, a lion grumbling over his
prey.
3. To rumble; to make a low, harsh, and heavy sound; to mutter; as,
the distant thunder grumbles.
Grum"ble, v. t.
Definition: To express or utter with grumbling.
Grum"ble, n.
1. The noise of one that grumbles.
2. A grumbling, discontented disposition.
A bad case of grumble. Mrs. H. H. Jacksn.
Source: Webster’s Unabridged Dictionary 1913 Edition