Sure and Weak knees
Opposite meaning terms
Sure
Sure adjective - Having or showing a mind free from doubt.
Weak knees is an antonym for sure.
Nearby Word: surely
Weak knees
Cite this Source
Weak knees and Sure. (2016). Retrieved 2026, July 28, from https://thesaurus.plus/related/sure/weak_knees
Sure & Weak knees. N.p., 2016. Web. 28 Jul. 2026. <https://thesaurus.plus/related/sure/weak_knees>.
Weak knees or Sure. 2016. Accessed July 28, 2026. https://thesaurus.plus/related/sure/weak_knees.
Google Ngram Viewer shows how "sure" and "weak knees" have occurred on timeline