stupefied

Adjective

• in a state of mental numbness especially as resulting from shock
  • he had a dazed expression on his face
    
  • lay semiconscious, stunned (or stupefied) by the blow
    
  • was stupid from fatigue
    

• as if struck dumb with astonishment and surprise
  • a circle of policement stood dumbfounded by her denial of having seen the accident
    
  • the flabbergasted aldermen were speechless
    
  • was thunderstruck by the news of his promotion
    

Related words

• Synonyms: 
  dazed , stunned , stupid(p) , dumbfounded , dumfounded , flabbergasted , thunderstruck , dumbstruck , dumbstricken