Definition of Astounded

Adjective: astounded u'stawn-did

Filled with the emotional impact of overwhelming surprise or shock
"astounded viewers wept at the pictures from the Oklahoma City bombing";
- amazed, astonied [archaic], astonished, stunned

Verb: astound u'stawnd

Fill with wonder or astonishment; greatly surprise
"Your ability to speak six languages astounds me!";
- amaze, astonish