Ensuring safety in case of malfunction
safety, emergency, safeguarding; see protective.
Unlikely to fail
foolproof, trouble-free, problem-free, guaranteed; see reliable 2.
"fail-safe." YourDictionary, n.d. Web. 11 October 2018. <http://thesaurus.yourdictionary.com/fail-safe>.
fail-safe. (n.d.). Retrieved October 11th, 2018, from http://thesaurus.yourdictionary.com/fail-safe
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