Adjective astounding has 2 senses
  1. astounding, dumbfounding, dumfounding - bewildering or striking dumb with wonder
    Antonyms: credible, believable (indirect, via incredible)
  2. astonishing, astounding, staggering, stupefying - so surprisingly impressive as to stun or overwhelm; "such an enormous response was astonishing"; "an astounding achievement"; "the amount of money required was staggering"; "suffered a staggering defeat"; "the figure inside the boucle dress was stupefying"
    Antonym: unimpressive (indirect, via impressive)
,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
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