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English definition of “glum”

glum

adjective uk   /ɡlʌm/ (glummer, glummest) informal us  
disappointed or unhappy, and quiet: You look glum. What's up? He's very glum about the company's prospects.Feeling sad and unhappyNot hopeful If a place is glum, it is not attractive and has nothing that causes pleasure: They live in one glum little room.Not attractive to look atSerious and unpleasant
glumly
adverb uk   /ˈɡlʌm.li/ us  
"I'll never find another job at my age," she said glumly.Feeling sad and unhappyNot hopeful
glumness
noun [U] uk   /ˈɡlʌm.nəs/ us  
Sadness and regret
(Definition of glum from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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