1

fail-safe

adjective \ ˈfāl-ˌsāf \

Definition of fail-safe

1 : incorporating some feature for automatically counteracting the effect of an anticipated possible source of failure
2 : being or relating to a safeguard that prevents continuing on a bombing mission according to a preconceived plan
3 : having no chance of failure : infallibly problem-free
  • the little black dress … has consistently been the fail-safe solution for night
  • Vogue

First Known Use of fail-safe

1946

fail-safe Synonyms


2

fail-safe

noun

Definition of fail-safe

: a device or measure that makes something fail-safe

First Known Use of fail-safe

1975

fail-safe Synonyms


FAIL-SAFE Defined for English Language Learners

fail-safe

adjective

Definition of fail-safe for English Language Learners

  • : certain not to fail



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