thunderstruck
dumbstruck
punch drunk
dumbfounded
speechlessly
stunned
staggered
at a loss for words
dazedly
muzzy
startledly
confounded
popeyed
hamana-hamana-hamana
bemazed
lost for words
with one's jaw in one's lap
speechless
taken aback
bewilderedly
astounded
on a wonder
stutteringly
flannel-mouthed
gobsmacked
uneasily
torpidly
disorientedly
surprisedly
bewigged
silly
astonished
nonspeak
startled
disturbed
God preserve us
aphrasia
wide-eyed
nosuh
strike dumb
non-verbal
the mind boggles
splutter
aback
startlish
astonishment
stun
disconcertedly
into thin air
holy cats
I'll go to the foot of our stairs
off balance
open-mouthed
astoundedness
shocked
tongueless
strike me up a gum tree
startlement
inarticulate
oh, my stars and garters
perplexed
unprepared
bemused
Queer Street
stupefaction
falteringly
disturbedly
Jerusalem crickets
gape-mouthed
interruptedly
astonishedly
Lord
apostrophe
flustered
breathtaking
devastated
muffledly
heartstricken
holy cow
hesitation
shockable
shook-up
stound
stroll on
shut my mouth
disbelief
fucking hell
astoundedly
verklempt
holy Toledo
peep
fluttered
God Almighty
I'll be a son of a gun
narrow-minded
dumbfoundedly
discombobulated
alarmedly