Adventitious is an adjective that means happening by chance not design.

The Latin word adventicius (odd VENT tee toose) means ‘coming to us from abroad.’ Our word of the day can maintain this definition or it means ‘coming from chance, not design.’ Here’s an example of the latter:

Our team’s victory was glorious, but in the end seemed adventitious. Luck was the only way to explain how we defeated last year’s champs.