Mentally ill
Mentally ill adjective - Suffering from severe mental illness.
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Synonyms for Mentally ill
Mad is a synonym for mentally ill in sane topic. In some cases you can use "Mad" instead an adjective phrase "Mentally ill", when it comes to topics like unwell in the mind.
Mad
Mad adjective - Feeling or showing anger.
Mentally ill is a synonym for mad in sane topic. You can use "Mentally ill" instead an adjective "Mad", if it concerns topics such as insane.
Mutual synonyms
Cite this Source
Mad and Mentally ill. (2016). Retrieved 2026, August 08, from https://thesaurus.plus/related/mentally_ill/mad
Mentally ill & Mad. N.p., 2016. Web. 08 Aug. 2026. <https://thesaurus.plus/related/mentally_ill/mad>.
Mad or Mentally ill. 2016. Accessed August 08, 2026. https://thesaurus.plus/related/mentally_ill/mad.
Google Ngram Viewer shows how "mentally ill" and "mad" have occurred on timeline