accident

1. 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.countableuncountable

2. (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. (but see Usage notes)Examples: "There was a huge accident on I5 involving 15 automobiles."; "My insurance went up after the second accident in three months."; "Surprisingly, this analysis revealed that acute exposure to solvent vapors at concentrations below those associated with long-term effects appears to increase the risk of a fatal automobile accident. Furthermore, this increase in risk is comparable to the risk of death from leukemia after long-term exposure to benzene, another solvent, which has the well-known property of causing this type of cancer."countableuncountable

3. (uncountable) Chance; random chance.Examples: "c.1861-1863, Richard Chevenix Trench, in 1888, Letters and memorials, Volume 1, Thou cam'st not to thy place by accident, / It is the very place God meant for thee; […]"; "And so with his writing, which he proudly said was a perfect counterpart of his life. Accident played a major part in both."Synonyms: fortuneuncountable

4. Any property, fact, or relation that is the result of chance or is nonessential or nonsubstantive.Examples: "An adjective, so called because adjectitious, or added to a substantive, denotes some quality or accident of the substantive to which it is joined […]"Synonyms: accidenscountableuncountable

5. (euphemistic) An instance of incontinence.Examples: "We weren’t there long when Karin asked about our dog. When we told her Chris was in the car, she insisted we bring him up to the apartment. I rejected her offer and said he might have an accident on the carpet and I didn’t want to worry about it."countableeuphemisticuncountable

6. (euphemistic) An instance of incontinence.countableeuphemisticuncountable