Dumfounded

from WordNet (r) 3.0 (2006)

dumfounded
    adj 1: as if struck dumb with astonishment and surprise; "a
           circle of policement stood dumbfounded by her denial of
           having seen the accident"; "the flabbergasted aldermen
           were speechless"; "was thunderstruck by the news of his
           promotion" [syn: {dumbfounded}, {dumfounded},
           {flabbergasted}, {stupefied}, {thunderstruck},
           {dumbstruck}, {dumbstricken}]

from The Collaborative International Dictionary of English v.0.48

Dumfound \Dum"found`\, v. t. [imp. & p. p. {Dumfounded}; p. pr.
   & vb. n. {Dumfounding}.]
   To strike dumb; to confuse with astonishment. [Written also
   {dumbfound}.] --Spectator.
   [1913 Webster]

from The Collaborative International Dictionary of English v.0.48

dumfounded \dumfounded\ adj.
   same as {dumbfounded}.

   Syn: amazed, astonied, astonished, astounded, flabbergasted,
        stunned, stupefied, thunderstruck.
        [WordNet 1.5]

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