1. As if struck dumb with astonishment and surprise
   - dumbfounded, flabbergasted, stupefied, thunderstruck, dumbstruck, dumbstricken

1. To strike dumb; to confuse with astonishment

See also: surprised

• keep down
• keep fit
• keep going
• keep guard
• keep in
• keep in line
• keep mum
• keep note
• keep off
• keep on
• keep one's distance
• keep one's eyes off
• keep one's eyes open
• keep one's eyes peeled
• keep one's eyes skinned
• keep one's hands off
• keep one's mouth shut
• keep one's nose to the grindstone
• keep one's shoulder to the wheel
• keep open
• keep out
• keep pace
• keep quiet
• keep step
• keep tabs on