English

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Alternative forms

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Etymology

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Blend of dumb +‎ confound

Pronunciation

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Verb

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dumbfound (third-person singular simple present dumbfounds, present participle dumbfounding, simple past and past participle dumbfounded)

  1. (transitive) To confuse and bewilder; to leave speechless.
    • 1989 December 3, Franklin Kameny, “Prostitution: Good, Right, And Desirable”, in Gay Community News, volume 17, number 21, page 5:
      A bunch of nice, middle-class women debated on how to "rescue" prostitutes from their "terrible" fate. By invitation, the conference was attended by a number of prostitutes, who dumbfounded those nice, bourgeois ladies by making it clear that they had no desire whatever to be "rescued"

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