Loony and Sharp

Loony

Loony adjective - Showing or marked by a lack of good sense or judgment.

Sharp is an antonym for loony.

Nearby Word: loon

Sharp

Sharp adjective - Having or showing quickness of mind.
Usage example: any sharp student would have noticed the error immediately

Loony is an antonym for sharp.

Cite this Source
Sharp and Loony. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/loony/sharp
Loony & Sharp. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/loony/sharp>.
Sharp or Loony. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/loony/sharp.
Google Ngram Viewer shows how "loony" and "sharp" have occurred on timeline