Deranged
Deranged adjective - Having or showing a very abnormal or sick state of mind.
Usage example: a deranged prisoner who had been in that rat-infested hole for 20 years
Loony is a synonym for deranged. In some cases you can use "Loony" instead the word "Deranged" as an adjective or a noun.
Nearby Words: derangement, deranging
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
Deranged is a synonym for loony in crazy topic. Sometimes you can use "Deranged" instead the word "Loony" as an adjective or a noun, if it concerns topics such as insane.
Nearby Word: loon
Mutual synonyms
Both words in one sentence
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Loony Fan: Marlon (and later Shawn who goes to rescue him) is held hostage by a deranged fan.
Source: Series / The Wayans Bros. -
In 1981 Ronald Reagan was shot, but only wounded, by a deranged fan of Jodie Foster who imitated the loony taxi driver in Taxi Driver, where the character supposedly rescues a teenage prostitute (played by Foster) by committing a murder.
Source: Loony Fan -
Sanity Slippage: "Stan", in which the first three verses consist of increasingly deranged letters from the Loony Fan of the song's title.
Source: Music / Eminem
Cite this Source
Loony and Deranged. (2016). Retrieved 2026, July 28, from https://thesaurus.plus/related/deranged/loony
Deranged & Loony. N.p., 2016. Web. 28 Jul. 2026. <https://thesaurus.plus/related/deranged/loony>.
Loony or Deranged. 2016. Accessed July 28, 2026. https://thesaurus.plus/related/deranged/loony.
Google Ngram Viewer shows how "deranged" and "loony" have occurred on timeline