Sure and Unbelieving
Opposite meaning words
Sure
Sure adjective - Having or showing a mind free from doubt.
Unbelieving is an antonym for sure.
Nearby Word: surely
Unbelieving
Unbelieving adjective - Inclined to doubt or question claims.
Usage example: unbelieving scientists who demand that all phenomena be subjected to rigorous scientific scrutiny
Sure is an antonym for unbelieving.
Cite this Source
Unbelieving and Sure. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/sure/unbelieving
Sure & Unbelieving. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/sure/unbelieving>.
Unbelieving or Sure. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/sure/unbelieving.
Google Ngram Viewer shows how "sure" and "unbelieving" have occurred on timeline