grumble 1
verbdomain: v speaking
Princeton WordNet [ver.3.1]
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EnglishDefinition
show one's unhappiness or critical attitude
Hypernym
complain 1
verb
express complaints, discontent, displeasure, or unhappiness
EnglishDerivationally related form
grumble 2
noun
a complaint uttered in a low and indistinct tone
grumbler 1
noun
a person given to excessive complaints and crying and whining
