- An incident that occurs unexpectedly, often due to a lack of attention, unawareness, or ignorance, and leads to an unfortunate outcome like harm or damage. The person affected by this incident could have the right to legal remedy or an insurance claim
- Due to another driver's carelessness, he had an accident on the highway which led him to seek legal remedy for his injuries.
- The accident at the construction site was a result of ignorance about safety measures.
- She was unaware of the slippery floor, which caused an unfortunate accident and she later made an insurance claim.