Silly
Silly adjective - Lacking in seriousness or maturity.
Weak knees and silly are semantically related In some cases you can replace phrase "Weak knees" with "Silly", this terms are similar.
Nearby Word: silliness
Weak knees
Silly and weak knees are semantically related in dazed topic. Sometimes you can use "Silly" instead an adjective phrase "Weak knees".
Mutual synonyms
Cite this Source
Weak knees and Silly. (2016). Retrieved 2026, August 01, from https://thesaurus.plus/related/silly/weak_knees
Silly & Weak knees. N.p., 2016. Web. 01 Aug. 2026. <https://thesaurus.plus/related/silly/weak_knees>.
Weak knees or Silly. 2016. Accessed August 01, 2026. https://thesaurus.plus/related/silly/weak_knees.
Google Ngram Viewer shows how "silly" and "weak knees" have occurred on timeline