fatal
adj.adj. causing death or leading to a total failure. You use this to describe a mistake or an accident that has the worst possible result.
adj. causing death or leading to inevitable ruin or failure. In a technical context, it describes an error that causes a process or program to terminate completely.
The driver suffered a fatal injury in the crash.
The company made a fatal mistake by ignoring the new technology, leading to its bankruptcy within a year.
The software encountered a fatal error during the update, resulting in a complete system crash that required a manual reboot to resolve.
From Middle French fatal, from Latin fātālis (“fatal”).
Commonly modifies nouns like 'error', 'flaw', 'mistake', or 'accident'.
a fate accidenta fatal accidentLearners sometimes use the noun 'fate' instead of the adjective 'fatal' to describe a deadly event.