n. The quality of being fatal; fatalness: as, the fatality of an event.n. A fixed, unalterably predetermined course of things, independent of any controlling cause; a doom which inevitably must be, whatever forces may oppose it; an invincible necessity existing in things themselves.n. Tendency to destruction or danger, or to some hazardous, critical, or fatal event; mortality; deadliness.n. A fatal occurrence: as, nothing could avert the fatality.