Doubtless
Sanguine
Sanguine adjective - Having or showing a mind free from doubt.
Usage example: I'm reasonably sanguine about the adoption of the latest proposal
Doubtless and sanguine are semantically related. Sometimes you can use "Doubtless" instead an adjective "Sanguine".
Nearby Words: sanguinary, sanguineous
Cite this Source
Sanguine and Doubtless. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/doubtless/sanguine
Doubtless & Sanguine. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/doubtless/sanguine>.
Sanguine or Doubtless. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/doubtless/sanguine.
Google Ngram Viewer shows how "doubtless" and "sanguine" have occurred on timeline