Sure and Unbacked

Opposite meaning words

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

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Unbacked is an antonym for sure.

Nearby Word: surely

Unbacked adjective - Unsupported by other people.

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Sure is an antonym for unbacked in flimsy topic.

Cite this Source

Unbacked and Sure. (2016). Retrieved 2026, August 09, from https://thesaurus.plus/related/sure/unbacked

Sure & Unbacked. N.p., 2016. Web. 09 Aug. 2026. <https://thesaurus.plus/related/sure/unbacked>.

Unbacked or Sure. 2016. Accessed August 09, 2026. https://thesaurus.plus/related/sure/unbacked.

Google Ngram Viewer shows how "sure" and "unbacked" have occurred on timeline