random event

Definitions

An occurrence or outcome that cannot be predicted with certainty because it is determined by chance.

A phenomenon in probability theory where each possible outcome has a specific likelihood of occurring, but the individual result is unpredictable.

Examples

Winning the lottery is often considered a completely random event.

The scientist struggled to predict the outcome of the random event during the experiment.

Synonyms

chance occurrence stochastic process fortuitous event unpredictable incident haphazard happening

Antonyms

determined outcome planned event predictable occurrence systematic process intentional act