Mental illness
Mental illness noun - Any disease of the mind; the psychological state of someone who has emotional or behavioral problems serious enough to require psychiatric intervention.
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Synonyms for Mental illness
Quirk and mental illness are semantically related. In some cases you can use "Quirk" instead a noun phrase "Mental illness".
Quirk
Quirk noun - An odd or peculiar habit.
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Synonyms for Quirk
Mental illness and quirk are semantically related. Sometimes you can use "Mental illness" instead a noun "Quirk".
Nearby Word: quirky
Mutual synonyms
Both terms in one sentence
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Parodied in Sam & Fuzzy, where "Chronic Tragic Gothic Romanticism" is a common quirk/mental illness amongst vampires, which causes them to believe in this trope bigtime.
Source: Stalking Is Love - In Glee, Emma Pilsbury's OCD is mostly shown as a strange character quirk instead of the debilitating mental illness that it is.
Source: The Mentally Disturbed
Cite this Source
Quirk and Mental illness. (2016). Retrieved 2026, July 30, from https://thesaurus.plus/related/mental_illness/quirk
Mental illness & Quirk. N.p., 2016. Web. 30 Jul. 2026. <https://thesaurus.plus/related/mental_illness/quirk>.
Quirk or Mental illness. 2016. Accessed July 30, 2026. https://thesaurus.plus/related/mental_illness/quirk.
Google Ngram Viewer shows how "mental illness" and "quirk" have occurred on timeline