fail-safe

/ˈfeɪl.seɪf/
designed to prevent catastrophic failure

The system includes a fail-safe mechanism to shut down automatically if temperatures rise too high.

The system has a built-in safety feature that activates to prevent damage or danger when temperatures become unsafe.


Engineering
technical

A mechanism or design feature that automatically prevents or mitigates failure in a system, especially to avoid catastrophic consequences.

The nuclear reactor has multiple fail-safe systems to ensure safety in case of an emergency.

The reactor is equipped with several safety mechanisms that activate automatically to prevent accidents.

The software includes a fail-safe to revert to a previous stable version if an update fails.

The software has a backup system that restores the previous working version if the update process encounters errors.

Common in engineering, aviation, and technology to describe safety-critical systems.

Collocations

fail-safe mechanisma built-in safety feature that prevents failurefail-safe systema design that ensures safety even if part of the system fails

Related Phrases

single-point failurephrase
a system flaw where one failure causes total system collapse
redundant systemphrase
a backup system that takes over if the primary system fails

Pro Tip

Technical Context

Use 'fail-safe' when discussing engineering, aviation, or technology to describe safety mechanisms.

Gold Rule

Avoid Overuse

Do not apply 'fail-safe' to non-technical situations, as it is a specialized term.

Word Origin

From the combination of 'fail' (to stop working) and 'safe' (secure), popularized in engineering and technology contexts.

Usage Notes

Primarily used in technical fields to describe systems designed to prevent catastrophic failure. Avoid using it for non-technical contexts.

Word Breakdown

fail
to stop working or malfunction
root
+
safe
secure or protected from harm
root
English Dictionary