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dumbfounderment

  • a word derived from dumbfound.
    dumbfound
    verb (used with object)
    to make speechless with amazement; astonish.

Example Sentences

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Then moving uncertainly toward him, she said, "Monsieur Duchemin!" not loudly, for she was not a woman to give excuse for a scene under any circumstances, but in a tone of complete dumbfounderment.

From The False Faces Further Adventures from the History of the Lone Wolf by Louis Joseph Vance

Rosemary was silent for a moment from sheer dumbfounderment.

From Rainbow Valley by L. M. (Lucy Maud) Montgomery