Synonyms and related words :
accident, adversity, blow, calamity, casualty, cataclysm, catastrophe, collision, contretemps, crack-up, crash, disaster, dole, grief, ill hap, misadventure, mischance, misfortune, nasty blow, pileup, shipwreck, shock, smash, smashup, staggering blow, tragedy, wreck