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1

fail–safe

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adjective \ˈfāl-ˌsāf\

Simple Definition of fail–safe

  • : certain not to fail

Source: Merriam-Webster's Learner's Dictionary

Full Definition of fail–safe

  1. 1 :  incorporating some feature for automatically counteracting the effect of an anticipated possible source of failure

  2. 2 :  being or relating to a safeguard that prevents continuing on a bombing mission according to a preconceived plan

  3. 3 :  having no chance of failure :  infallibly problem-free <the little black dress … has consistently been the fail–safe solution for night — Vogue>

1946

First Known Use of fail–safe

1946


2

fail–safe

noun

Definition of fail–safe

  1. :  a device or measure that makes something fail-safe



1975

First Known Use of fail–safe

1975


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