Loony and Sagacious
Opposite meaning words
Loony
Loony adjective - Showing or marked by a lack of good sense or judgment.
Usage example: that's got to be the looniest idea I've ever heard
Nearby Word: loon
Sagacious
Sagacious adjective - Having or showing deep understanding and intelligent application of knowledge.
Nearby Word: sagacity
Cite this Source
Sagacious and Loony. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/loony/sagacious
Loony & Sagacious. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/loony/sagacious>.
Sagacious or Loony. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/loony/sagacious.
Google Ngram Viewer shows how "loony" and "sagacious" have occurred on timeline