Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun accident

2 senses of accident

Sense 1
accident -- (an unfortunate mishap; especially one causing damage or injury)
       => mishap, misadventure, mischance -- (an instance of misfortune)

Sense 2
accident, stroke, fortuity, chance event -- (anything that happens suddenly or by chance without an apparent cause; "winning the lottery was a happy accident"; "the pregnancy was a stroke of bad luck"; "it was due to an accident or fortuity")
       => happening, occurrence, occurrent, natural event -- (an event that happens)