Use 'adventitious' to describe events that occur randomly without any intention or inherent reason. They met by an adventitious encounter at the coffee shop.
Pro Tip 2/3
Unplanned Success
Highlight unexpected successes as adventitious when they are not the result of a strategy or plan. Winning the lottery was an adventitious twist in her life.
Pro Tip 3/3
Unpredictable Factors
Illustrate the role of luck or external factors in situations using 'adventitious'. Adventitious weather changes disrupted the expedition.