Definition of "bitterly" []

• In a bitter manner. (adverb)

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• "White also places a dead-looking tree behind the mother and child in his Hope for the Future but adds a noose; this and the mother's dejected pose -- her shoulders drooping, she holds the baby across her lap in the manner of a pieta -- make the title bitterly ironic."
• "So many anti-immigration fanatics complain about how immigrants are supposedly ruining this country, and one of the things they complain about bitterly is how most telphone menus say “Press 1 for English”."
• "They too depend upon the tolerance of the local authorities but usually the neighbors complain bitterly and the establishment does not stay open for long."