That does not cause undue damage in the event of failure. / Designed to shut off for safety if an emergency occurs.

A device, mechanism or measure designed to make something fail-safe.

To compensate automatically, in the event of a failure. / To make a device or mechanism fail-safe, or to add a fail-safe device or mechanism to an existing system.

(computing) To automatically switch processing from a failed component in a critical system to its live spare or backup component.

(UK, slang, derogatory) The Daily Mail newspaper.

plural of fail-safe

Third-person singular simple present indicative form of fail-safe

present participle of fail-safe

simple past tense and past participle of fail-safe

Describing a form of examination etc in which the student either passes or fails, without receiving a specific mark or grade.