Sure and Unfirm

Opposite meaning words

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

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Unfirm is an antonym for sure.

Nearby Word: surely

Unfirm adjective - Not firmly or solidly positioned.

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Sure is an antonym for unfirm in trembling topic.

Cite this Source

Unfirm and Sure. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/sure/unfirm

Sure & Unfirm. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/sure/unfirm>.

Unfirm or Sure. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/sure/unfirm.

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