Loony
Loony adjective - Having or showing a very abnormal or sick state of mind.
Usage example: unfortunately, that homeless man talking to himself on the street is indeed loony
Paranoiac and loony are semantically related. In some cases you can use "Paranoiac" instead an adjective "Loony".
Nearby Word: loon
Mutual synonyms
Cite this Source
Paranoiac and Loony. (2016). Retrieved 2026, August 01, from https://thesaurus.plus/related/loony/paranoiac
Loony & Paranoiac. N.p., 2016. Web. 01 Aug. 2026. <https://thesaurus.plus/related/loony/paranoiac>.
Paranoiac or Loony. 2016. Accessed August 01, 2026. https://thesaurus.plus/related/loony/paranoiac.
Google Ngram Viewer shows how "loony" and "paranoiac" have occurred on timeline