That doesn't cause undue damage, in the event of failure.
Equipped with a secondary system that insures continued operation even if the primary system fails.
eliminating danger by compensating automatically for a failure or malfunction; "a fail-safe device in a nuclear weapon to deactivate it automatically in the event of accident"
guaranteed not to fail; "a fail-safe recipe for cheese souffle"
a mechanism capable of returning to a safe state in case there is a failure or malfunction
eliminating danger by compensating automatically for a failure or malfunction
