Get the FREE one-click dictionary software for Windows
or the iPhone/iPad and Android apps
Adjective: dumfounded  'dúm,fawn-did or dúm'fawn-did [N. Amer], dúm'fawn-did [Brit]
  1. As if struck dumb with astonishment and surprise
    "a circle of policemen stood dumfounded by her denial of having seen the accident";
    - dumbfounded, flabbergasted, stupefied, thunderstruck, dumbstruck, dumbstricken
Verb: dumfound  dúm,fawnd or dúm'fawnd [N. Amer], dúm'fawnd [Brit]
  1. Strike dumb; confuse with astonishment
    "The magician's trick dumfounded the audience";
    - dumbfound

See also: surprised