Upset
Upset adjective - Feeling or showing uncomfortable feelings of uncertainty.
Weak knees and upset are semantically related In some cases you can replace phrase "Weak knees" with "Upset", this terms are similar.
Nearby Word: upsetting
Weak knees
Upset and weak knees are semantically related in dizzy topic. Sometimes you can use "Upset" instead an adjective phrase "Weak knees", if it concerns topics such as light-headed.
Cite this Source
Weak knees and Upset. (2016). Retrieved 2026, August 02, from https://thesaurus.plus/related/upset/weak_knees
Upset & Weak knees. N.p., 2016. Web. 02 Aug. 2026. <https://thesaurus.plus/related/upset/weak_knees>.
Weak knees or Upset. 2016. Accessed August 02, 2026. https://thesaurus.plus/related/upset/weak_knees.
Google Ngram Viewer shows how "upset" and "weak knees" have occurred on timeline