RichThesaurus
take aback
take aback
synonyms
floor
disconcert
stagger
stun
confound
astonish
startle
amaze
shock
dumbfound
nonplus
bowl over
bewilder
daze
astound
shake
discompose
unnerve
flabbergast
take someone's breath away
stupefy
knock for six
surprise
throw
shake up
unsettle
blow away
overwhelm
rattle
disturb
faze
upset
dismay
knock sideways
perturb
discomfit
throw off balance
fluster
strike dumb
perplex
agitate
stop someone in their tracks
jolt
blow someone's mind
ruffle
leave open-mouthed
abash
discombobulate
alarm
confuse
take aback
definitions
verb
To surprise or shock; to discomfit.
Of a ship: to catch it with the sails aback suddenly.