fortuitous • \for-TOO-uh-tus\  • adjective

Fortuitous is a formal word that usually describes something that comes or happens by a lucky chance. It can also mean “happening by chance” and “fortunate, lucky.”

// The fact that we were both there was a fortuitous coincidence.

// You could not have arrived at a more fortuitous time.

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Examples:

“The timing of the hit’s resurgence proved fortuitous: She had nearly wrapped the recording for 2025 full-length Pressure ... and the scorching hot single provided a push in the lead-up.” — Mackenzie Cummings-Grady, Billboard, 11 Nov. 2025

Did you know?

Before its meaning expanded, fortuitous meant one thing only: “happening by chance.” This was no accident; its Latin forebear, fortuitus, shares the same ancient root as fors, the Latin word for “chance.” But the fact that fortuitous sounds like a blend of fortunate and felicitous (“happily suited to an occasion”) likely led to a second meaning of “fortunate, lucky,” with the seeds of the newer sense perhaps planted by writers applying overtones of good fortune to something that is a random occurrence. The “lucky” use has been disparaged by critics, but it is now well established. Irregardless (cough), employing this sense in sterner company may be considered chancy.