Synonyms and related words :
abash, addle, addle the wits, baffle, balk, ball up, becloud, bedazzle, befuddle, bewilder, blast, bomb, bother, brave, bug, challenge, checkmate, circumvent, cloud, confound, confront, confuse, contravene, counter, counteract, countermand, counterwork, crap out, cross, dash, daze, dazzle, deceive, defeat, defy, destroy, discombobulate, discomfit, discompose, disconcert, discountenance, dish, dismay, disorganize, disorient, disrupt, disturb, draw a blank, drop a bomb, drop the ball, elude, embarrass, entangle, fan, flop, flurry, fluster, flutter, fog, foil, fold, fold up, fox, frustrate, fuddle, fuss, get left, hoodwink, knock the chocks, lay an egg, lose out, maze, mist, mix up, moider, muddle, mystify, nonplus, not hack it, not make it, perplex, perturb, pother, put out, puzzle, raise hell, rattle, ruffle, ruin, sabotage, scotch, spike, spoil, stonewall, strike out, stump, stymie, take the count, throw into confusion, thwart, unsettle, upset, wash out, whiff