accident
An unexpected event with negative consequences occurring without the intention of the one suffering the consequences, and (in the strict sense) not directly caused by humans.
(law) Casus; such unforeseen, extraordinary, extraneous interference as is out of the range of ordinary calculation.
(transport) A collision or crash of a vehicle, aircraft, or other form of transportation that causes damage to the transportation involved; and sometimes injury or death to the transportation's occupants or bystanders in close proximity.
Any chance event.
(random chance) Chance; random chance.
Any property, fact, or relation that is the result of chance or is nonessential or nonsubstantive.
(grammar) A property attached to a word, but not essential to it, such as gender, number, or case.
(euphemistic) An instance of incontinence.
Urine or feces excreted due to incontinence.
(euphemistic) An unintended pregnancy.
(derogatory or humorous) A person born from an unintended pregnancy.
(geology) An irregular surface feature with no apparent cause.
(geology) A sudden discontinuity of ground such as fault of great thickness, bed or lentil of unstable ground.{{cite-book| title = Dictionary of Civil Engineering: English-French
(heraldry) A point or mark which may be retained or omitted in a coat of arms.
(transport) Designating any form of transportation involved in an accident.