happenstance

Definitions

A chance occurrence or event.

The fact of something happening by chance rather than by design.

Examples

It was pure happenstance that we ran into each other at the airport after all these years.

The discovery of the ancient artifact was a fortunate happenstance during the construction of the new road.

Synonyms

coincidence chance occurrence fluke serendipity accident fortuity random event

Antonyms

certainty design intent plan premeditation purpose deliberate act