stunned stunned /ˈstʌnd/

adjective

1. () Filled with the emotional impact of overwhelming surprise or shock  ( astonied [Archaic] , astounded , stunned , amazed , astonished )
   filled with the emotional impact of overwhelming surprise or shock
    An amazed audience gave the magician a standing ovation
   an amazed audience gave the magician a standing ovation
    I stood enthralled, astonished by the vastness and majesty of the cathedral
   I stood enthralled, astonished by the vastness and majesty of the cathedral
    Astounded viewers wept at the pictures from the Oklahoma City bombing
   astounded viewers wept at the pictures from the Oklahoma City bombing
    Stood in stunned silence
   stood in stunned silence
    Stunned scientists found not one but at least three viruses
   stunned scientists found not one but at least three viruses
   
2. In a state of mental numbness especially as resulting from shock  ( stunned , stupefied , stupid , dazed )
   in a state of mental numbness especially as resulting from shock
    He had a dazed expression on his face
   he had a dazed expression on his face
    Lay semiconscious, stunned (or stupefied) by the blow
   lay semiconscious, stunned (or stupefied) by the blow
    Was stupid from fatigue
   was stupid from fatigue
   
3. Knocked unconscious by a heavy blow  ( kayoed , knocked out , KO'd , out , stunned )
   knocked unconscious by a heavy blow
   

 stun stun /ˈstʌn/

verb

1. () Make senseless or dizzy by or as if by a blow  ( stupefy , stun )
   make senseless or dizzy by or as if by a blow
    Stun fish
   stun fish
   
2. () Hit something or somebody as if with a sandbag  ( sandbag , stun )
   hit something or somebody as if with a sandbag
   
3. Overcome as with astonishment or disbelief  ( bedaze , daze , stun )
   overcome as with astonishment or disbelief
    The news stunned her
   The news stunned her