Adjective astounded has 1 sense
  1. amazed, astonied, astonished, astounded, stunned - filled with the emotional impact of overwhelming surprise or shock; "an amazed audience gave the magician a standing ovation"; "I stood enthralled, astonished by the vastness and majesty of the cathedral"; "astounded viewers wept at the pictures from the Oklahoma City bombing"; "stood in stunned silence"; "stunned scientists found not one but at least three viruses"
    Antonyms: unsurprised, not surprised (indirect, via surprised)
,Verb astound has 1 sense
  1. amaze, astonish, astound - affect with wonder; "Your ability to speak six languages amazes me!"
    --1 is one way to surprise
    Sample sentences:
    The good news will astound her
    The performance is likely to astound Sue