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English definition of “bitterly”


adverb [not gradable] (IN AN ANGRY WAY) /ˈbɪt̬·ər·li/
in a way that shows deep anger and pain: When he couldn’t have the bike, my son was bitterly disappointed.
(Definition of bitterly adverb (IN AN ANGRY WAY) from the Cambridge Academic Content Dictionary © Cambridge University Press)

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