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English definition of “grumpy”

grumpy

adjective     /ˈɡrʌm.pi/ informal
C1 easily annoyed and complaining: I hadn't had enough sleep and was feeling a bit grumpy. a grumpy old manBad-tempered grumpily     /-pɪ.li/ adverb grumpiness     /-nəs/ noun [U]
(Definition of grumpy adjective from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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