Fail-safe
Fail-safe adjective - Not likely to fail.
Usage example: men have traditionally regarded flowers as the fail-safe gift for Valentine's Day
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Synonyms for Fail-safe
Unerring
Unerring adjective - Not being or likely to be wrong.
Fail-safe and unerring are semantically related. You can use "Fail-safe" instead an adjective "Unerring".
Nearby Word: unerringly
Mutual synonyms
Cite this Source
Unerring and Fail-safe. (2016). Retrieved 2026, August 13, from https://thesaurus.plus/related/fail-safe/unerring
Fail-safe & Unerring. N.p., 2016. Web. 13 Aug. 2026. <https://thesaurus.plus/related/fail-safe/unerring>.
Unerring or Fail-safe. 2016. Accessed August 13, 2026. https://thesaurus.plus/related/fail-safe/unerring.