dependable, good, infallible; see excellent, reliable 2.
"sure-fire." YourDictionary, n.d. Web. 05 December 2018. <https://thesaurus.yourdictionary.com/sure-fire>.
sure-fire. (n.d.). Retrieved December 05th, 2018, from https://thesaurus.yourdictionary.com/sure-fire
Such as could not possibly fail or disappoint:
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