stunned
adjective()
in a state of mental numbness especially as resulting from shock
Examples:
Lay semiconscious, stunned (or stupefied) by the blow.
stunned
adjective()
knocked unconscious by a heavy blow
stunned
adjective()
filled with the emotional impact of overwhelming surprise or shock
Examples:
Stood in stunned silence.
Stunned scientists found not one but at least three viruses.