English Reference
adjective · noun

fatal

adj. · n.
US /ˈfeɪtəɫ/ UK /fˈeɪtəl/ fa·tal UK spelling fatals

  1. 01 B2 Upper Intermediate

    adj.causing someone to die.

    adj.causing or capable of causing death; lethal.

    Simple

    The driver was lucky to survive such a fatal accident on the highway.

    In context

    The patient had contracted a fatal dose of the toxin, leaving the medical team with very few options for intervention.

    Usage

    Commonly collocates with 'accident', 'blow', 'dose', or 'illness'.

    harmlessnon fatal
  2. 02 B2 Upper Intermediate

    adj.causing something to fail completely or have a very bad result.

    adj.leading to failure, disaster, or ruin; describing a mistake that cannot be corrected.

    Simple

    Forgetting to check the contract was a fatal mistake for the small company.

    In context

    The general's inability to secure the supply lines proved to be a fatal flaw in his otherwise brilliant strategy.

    Usage

    Often used with abstract nouns like 'flaw', 'error', or 'mistake'.

  3. 03 C1 Advanced Technical Computing

    adj.describing a computer error that is so bad the program has to stop immediately.

    adj.denoting a processing error that results in the immediate termination of a program or operating system.

    Simple

    The system crashed after a fatal error occurred during the update.

    In context

    The application encountered a fatal exception when it attempted to access a restricted memory address, forcing an immediate shutdown.

    Usage

    Almost exclusively used in the phrase 'fatal error' or 'fatal exception'.

  4. 04 C2 Proficiency ArchaicLiterary

    adj.decided by fate or destiny.

    adj.proceeding from or appointed by fate; inevitable.

    Simple

    He felt that this fatal meeting had been planned by the stars.

    In context

    The hero marched toward his fatal encounter with the dragon, resigned to the destiny the oracles had foretold.

    Teacher's tip

    This sense is rare in modern speech; students will mostly encounter it in older literature or poetry.

  5. 05 C1 Advanced Formal

    n.an event or accident that results in a death.

    n.an occurrence or accident resulting in death; a fatality.

    Simple

    The police reported that there were no fatals in the multi-car crash.

    In context

    While the wreckage was extensive, emergency responders were relieved to confirm there were no fatals at the scene.

    Teacher's tip

    Using 'fatal' as a noun is much less common than using 'fatality'; it is often found in police or emergency service jargon.

Usage fatal shooting

Federal agents hold a person down, two weeks after the fatal ICE shooting of Renee Nicole Good on 7 January during an immigration raid.

The Guardian· 13 Aug 2026

The disease it causes is severe and often fatal.

The Guardian· 13 Aug 2026

From Middle French fatal, from Latin fātālis (“fatal”).

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

This entry
Origin Latin fātālis
Level C1 · Advanced
Frequency Common
Updated