01 v. i. To murmur or mutter with discontent; to make ill-natured complaints in a low voice and a surly manner.
imp. & p. p.
Grunbled; p. pr. & vb. n.
Grumbling
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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.
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2.
To growl; to snarl in deep tones; as, a lion grumbling over his prey.
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3.
To rumble; to make a low, harsh, and heavy sound; to mutter; as, the distant thunder grumbles.