Indubitable
Indubitable adjective - Not capable of being challenged or proved wrong.
Sure-fire and indubitable are semantically related. In some cases you can use "Sure-fire" instead an adjective "Indubitable".
Nearby Word: indubitably
Sure-fire
Sure-fire adjective - Certain to be successful.
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Synonyms for Sure-fire
Indubitable and sure-fire are semantically related. Sometimes you can use "Indubitable" instead an adjective phrase "Sure-fire".
Mutual synonyms
Related pairs
Cite this Source
Sure-fire and Indubitable. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/indubitable/sure-fire
Indubitable & Sure-fire. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/indubitable/sure-fire>.
Sure-fire or Indubitable. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/indubitable/sure-fire.