Accident

• an unfortunate mishap; especially one causing damage or injury
• 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"
• An accident is a specific, identifiable, unexpected, unusual and unintended external event which occurs in a particular time and place, without apparent cause but with marked effects.
• The logical fallacy of accident, also called destroying the exception or a dicto simpliciter ad dictum secundum quid, is a deductive fallacy occurring in statistical syllogisms (an argument based on a generalization) when an exception to the generalization is ignored.
• Literally, a befalling; an event that takes place without one's foresight or expectation; an undesigned, sudden, and unexpected event; chance; contingency; often, an undesigned and unforeseen occurrence of an afflictive or unfortunate character; a casualty; a mishap.
• Any sudden event which is unintended.
• An unforeseen and unintentional act identifiable in time and place.
• A loss that occurs at a specific time and place.
• Unexpected or chance event.
• An event or repeated exposure to conditions that unexpectedly causes injury or damage during the policy period.