Bit·ter·ly, adv. In a bitter manner.
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  bitterly
       adv 1: in a resentful manner; "she complained bitterly" [syn: with
              bitterness]
       2: indicating something hard to accept; "he was bitterly
          disappointed"
       3: extremely and sharply; "it was bitterly cold"; "bitter cold"
          [syn: piercingly, bitingly, bitter]