Definitions

1. adjective

happening or done without intention or planning

“The fire was an accidental consequence of the short circuit.”

2. noun

an event or situation that happens by chance

“The accidental discovery of penicillin revolutionized medicine.”

3. noun

a person who is in the wrong place at the wrong time, often as a victim of circumstances

“The hikers were innocent bystanders who became accidental victims of the avalanche.”