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English definition of “bitter”

bitter

adjective  /ˈbɪt̬·ər/ us  

bitter adjective (TASTE)

having a slightly stinging, strong taste, not salty or sweet: The coffee was bitter.

bitter adjective (ANGRY)

showing or causing deep anger and pain: Losing the election was a bitter disappointment.
bitterness
noun [U]  /ˈbɪt̬·ər·nəs/ us  
She has no bitterness about the past.

bitter

adjective, adverb  /ˈbɪt̬·ər/ us  

bitter adjective, adverb (COLD)

extremely cold: A bitter wind kept everyone indoors.
(Definition of bitter from the Cambridge Academic Content Dictionary © Cambridge University Press)
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