Synonyms to take aback

abash, abase, appall, astound, bewilder, bother, bring down, bring low, cast down, chagrin, confound, confuse, crush, debase, degrade, demean, diminish, discomfit, discompose, disconcert, discountenance, dismay, disturb, dump, dump on, embarrass, faze, flummox, humble, humiliate, lower, moider, mortify, perturb, pother, put down, put out, rattle, reduce, set down, take down, throw into confusion, trip up, upset, amaze, addle, admiration, affect, amazement, astonish, awe, awestrike, baffle, bamboozle, beat, bedaze, bedazzle, boggle, bowl down, bowl over, buffalo, confoundment, daze, dazzle, dumbfound, dumbfounder, flabbergast, floor, fuddle, get, impress, keep in suspense, lick, marveling, maze, move, muddle, mystify, nonplus, overwhelm, paralyze, perplex, petrify, puzzle, stagger, startle, stick, strike, strike dead, strike dumb, strike with wonder, stump, stun, stupefy, surprise, throw, touch, wonderment, daunt, disgust, freeze, give offense, gross out, horrify, nauseate, offend, overawe, pe