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WordNet-Online 
 Definitions from WordNet
Noun grumpiness has 1 sense 
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| Definitions from the WebGrumpinessDefinition:Grumpiness is the state of being irritable, easily annoyed, or in a bad mood. Example Sentences:
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| grumman grummet grumose grumous grump grumpier grumpiest grumpily grumpiness grumption grumpy grunch grundyism grunewald grung grunge grunge 
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