Weak
Weak adjective - Lacking bodily strength.
Weak knees and weak are semantically related. In some cases you can use "Weak knees" instead an adjective "Weak".
Weak knees
Weak and weak knees are semantically related. Sometimes you can use "Weak" instead an adjective phrase "Weak knees".
Mutual synonyms
Cite this Source
Weak knees and Weak. (2016). Retrieved 2026, August 01, from https://thesaurus.plus/related/weak/weak_knees
Weak & Weak knees. N.p., 2016. Web. 01 Aug. 2026. <https://thesaurus.plus/related/weak/weak_knees>.
Weak knees or Weak. 2016. Accessed August 01, 2026. https://thesaurus.plus/related/weak/weak_knees.
Google Ngram Viewer shows how "weak" and "weak knees" have occurred on timeline