unforeseen
131accidental — I adjective adventitious, casual, chance, coincidental, extrinsic, fortuitous, inadvertent, incidental, indeterminate, undesigned, undetermined, unexpected, unforeseen, unintended, unintentional, unpremeditated, unwitting associated concepts:… …
132quirk — I (accident) noun accidental occurrence casualty, chance, circumstance, fate, fortuitous event, fortuity, freak, hap, inadvertence, luck, misadventure, mischance, mishap, nonintentional occurrence, turn, twist, undesigned occurrence, unforeseen… …
