What does fortuitousness mean?
Fortuitousness is the quality of happening by chance rather than by intention, plan, or discernible cause. It is the abstract counterpart of the adjective "fortuitous": where a fortuitous event is a single chance occurrence, fortuitousness describes the chance-driven character of such events in general. In practice the word appears mostly in formal or literary writing — essays, criticism, philosophical prose — where an author wants to name randomness itself rather than any particular accident. Its connotations are neutral: chance favors no one, so fortuitousness carries no built-in sense of good or bad luck, despite the common tendency to treat "fortuitous" as a synonym for "fortunate." That slippage is precisely what makes the word worth knowing: it preserves a useful distinction between what merely happens unplanned and what happens luckily. Related forms include "fortuity," which names a chance event rather than the quality of chance.
nounThe quality or state of happening by chance rather than by design or necessity; the condition of being fortuitous.
- The quality of occurring by chance rather than by plan or cause; randomness of occurrence.
"Their meeting at the airport was a matter of sheer fortuitousness."
"By a remarkable fortuitousness, the two scientists submitted nearly identical papers within days of each other."
"The novel's plot depends less on clever design than on the fortuitousness of its characters' collisions."
Rarely pluralized; the singular covers both general and specific instances. Use "fortuities" instead when naming multiple distinct chance events.
"Such fortuitousnesses defy any tidy narrative."
Style guides love to police this word: strictly speaking, "fortuitous" means "by chance" — not "lucky" — so a fortuitous meeting can just as easily be an unfortunate one.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of fortuitousness
Fortuitousness derives from "fortuitous," which English adopted in the early modern period (attested from the 15th–16th centuries) from Latin "fortuitus," meaning "that which happens by chance." The Latin adjective comes from "fors," the ancient Roman personification of chance and the root of "fortuna," the goddess of luck whose name also gives us "fortune" and "fortunate." English simply appended the abstract-noun suffix "-ness" to the adjective, following a productive Germanic pattern for turning qualities into nouns. Its cognates therefore cluster around the Latin chance-family: fortune, fortunate, misfortune, and the rarer "fortuity."
Related word forms
How fortuitousness is actually used
A formal, somewhat abstract noun rarely used in everyday conversation; writers more often reach for "chance," "coincidence," or the simpler "fortuity." Because "fortuitous" itself is widely (if loosely) used to mean "lucky," any claim that fortuitousness implies a happy outcome should be avoided — chance cuts both ways.
Easily confused with fortuitousness
"Fortunate" means lucky or favored by good fortune, while "fortuitous" strictly means occurring by chance, whether the outcome is good or bad.
"Fortuity" is a close synonym meaning a chance occurrence or event, whereas "fortuitousness" names the quality of being chance-driven rather than the event itself.