Dubitable and Sure

Dubitable

Dubitable adjective - Giving good reason for being doubted, questioned, or challenged.
Usage example: some highly dubitable “evidence” that the stone tower was built by the Vikings

Sure is an antonym for dubitable.

Sure

Sure adjective - Having or showing a mind free from doubt.

Dubitable is an antonym for sure.

Nearby Word: surely
Cite this Source
Sure and Dubitable. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/dubitable/sure
Dubitable & Sure. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/dubitable/sure>.
Sure or Dubitable. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/dubitable/sure.
Google Ngram Viewer shows how "dubitable" and "sure" have occurred on timeline