1. in a way that happens by chance; by lucky accident or coincidence
Usage: formal; often used to describe unexpected favorable outcomes

Examples

• She fortuitously ran into an old friend at the airport who offered her a job.
• The discovery was made fortuitously when a researcher spilled a chemical on the sample.
• He fortuitously arrived just as the last train was leaving the station.
• The two companies fortuitously merged their projects and created something remarkable.
• We fortuitously found the perfect apartment on our first day of searching.
• The error in the code fortuitously revealed a security vulnerability before it could be exploited.