Weak at the knees
Weak and weak at the knees are semantically related. In some cases you can use "Weak" instead an adjective phrase "Weak at the knees".
Weak
Weak adjective - Lacking bodily strength.
Weak at the knees and weak are semantically related. Sometimes you can use "Weak at the knees" instead an adjective "Weak".
Cite this Source
Weak and Weak at the knees. (2016). Retrieved 2026, August 02, from https://thesaurus.plus/related/weak_at_the_knees/weak
Weak at the knees & Weak. N.p., 2016. Web. 02 Aug. 2026. <https://thesaurus.plus/related/weak_at_the_knees/weak>.
Weak or Weak at the knees. 2016. Accessed August 02, 2026. https://thesaurus.plus/related/weak_at_the_knees/weak.