unintended event
Definitions
An occurrence or incident that happens without being planned, foreseen, or desired.
A result or outcome that was not the intended goal of an action or process.
Examples
The power outage was an unintended event that caused significant delays in the production schedule.
He apologized for the unintended event, explaining that it was a simple oversight rather than a deliberate act.
Synonyms
accidental occurrence unforeseen incident chance happening fluke unexpected development
Antonyms
planned event deliberate action intentional occurrence premeditated act calculated move