stun

deaden, knock out, paralyze

benumb, numb, stupefy

bowl over, knock down

bang, bash, belt, bludgeon, clobber, clout, hammer, hit, paste, pound, punch, rap, slam, slap, slug, smack, smite, sock, strike, swat, thump, thwack, wallop, whack, whale

batter, beat, buffet, bung, chop, cuff, drub, pelt, pummel

befuddle, bewilder, confound, confuse, daze, discomfit, disconcert, dismay, jar, muddle, nonplus, perplex, shake up