take someone aback
SURPRISE, shock, stun, stagger, astound, astonish, startle, take by surprise, dumbfound, nonplus, stop someone in their tracks, shake (up), jolt, throw, unnerve, disconcert, unsettle, bewilder, flabbergast, knock sideways, floor, knock for six

[TahlilGaran] Dictionary of Contemporary English ▲

take aback
See: TAKEN BACK.

[TahlilGaran] English Idioms Dictionary ▲