stupefied

(s) 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
dumbfounded, dumbstricken, dumbstruck, dumfounded, flabbergasted, thunderstruck,
(s) 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
dazed, stupid, stunned,

dumbfounded dumbstricken dumbstruck dumfounded flabbergasted thunderstruck dazed stupid stunned