Synonyms and related words :
accessary, accessory, accidental, addendum, addition, adjunct, adventure, appendage, appurtenance, auxiliary, blow, blunder, calamity, casualty, cataclysm, catastrophe, chance, chance hit, collateral, collision, coming to be, contingency, contingent, contretemps, crack-up, crash, destiny, disaster, event, eventuality, eventuation, extra, fate, fluke, fortuity, fortune, freak accident, grief, hap, happening, happenstance, hazard, ill hap, incidence, incidental, inessential, kismet, long odds, long shot, luck, lucky shot, materialization, mere chance, misadventure, mischance, misfortune, mishap, mistake, nasty blow, nonessential, not-self, other, pileup, realization, secondary, serendipity, shipwreck, shock, smash, smashup, staggering blow, subsidiary, superaddition, supplement, tragedy, unessential, wreck