thunderstruck
as if struck dumb with astonishment and surprise
flabbergasted
as if struck dumb with astonishment and surprise
dazed
stunned or confused and slow to react (as from blows or drunkenness or exhaustion)
stunned
knocked unconscious by a heavy blow
dumfounded
as if struck dumb with astonishment and surprise
astounded
filled with the emotional impact of overwhelming surprise or shock
