Synonyms|44Antonyms|8|Broader|1Narrower|0Related|96
0
auxiliary
0
broken
0
built
0
can't-miss
0
clean
0
cordless
0
emergency
0
failsafe
0
infallible
0
overflow(noun, valve)
0
precaution
0
protective
0
reliant(adjective, fail)
0
safeguarded(adjective, fail)
0
safety
0
safety device(noun, expression, guard, shield, screen)
0
safety precaution(noun, expression, valve)
0
safety valve(noun, expression, guard, shield, screen)
0
sure-fire(adjective, dependable)
0
surefire
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APASmart Define. (2015). fail-safe thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/fail-safe/thesaurus/synonyms
ChicagoSmart Define. 2015. "fail-safe thesaurus" https://smartdefine.org/fail-safe/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, fail-safe thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/fail-safe/thesaurus/synonyms>.
MLASmart Define. "fail-safe thesaurus" 14 April 2015. Web. 21 September 2026. <https://smartdefine.org/fail-safe/thesaurus/synonyms>