Loon
Loon noun - A person judged to be legally or medically insane.
Usage example: giggled like a loon at his own jokes
Nearby Word: loony
Loony
Loony noun - A person judged to be legally or medically insane.
Usage example: his insistence that aliens from outer space were monitoring his thoughts forced doctors to conclude that he was in fact a loony
Nearby Word: loon
Mutual synonyms
Cite this Source
Loony and Loon. (2016). Retrieved 2026, August 02, from https://thesaurus.plus/related/loon/loony
Loon & Loony. N.p., 2016. Web. 02 Aug. 2026. <https://thesaurus.plus/related/loon/loony>.
Loony or Loon. 2016. Accessed August 02, 2026. https://thesaurus.plus/related/loon/loony.
Google Ngram Viewer shows how "loon" and "loony" have occurred on timeline