psychosis

noun

Definition of psychosisnext
as in dementia
a very serious mental illness that makes you behave strangely or believe things that are not true The patient suffers from some kind of psychosis.

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Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Recent Examples of psychosis The evaluator found that Bland was suffering psychosis due to having COVID-19. — Steve Maugeri, CBS News, 19 May 2026 That’s especially critical given these therapies carry risks, and some people are particularly vulnerable to them — for example, those with a history of psychosis, says Alpert. — Lisa Jarvis, Twin Cities, 13 May 2026 The internet is only just now recovering from the mass psychosis event that kicked off during Heated Rivalry’s inaugural season, which was a ratings hit for HBO Max. — Charles Pulliam-Moore, The Verge, 1 June 2026 In that setting, every user will be screened for cardiac issues and a family history of psychosis, and guided through their trip by two professional facilitators who have a doctor on call—and even then, some users experience a psychotic break or profound dissociative episodes. — Ross Andersen, The Atlantic, 12 June 2026 See All Example Sentences for psychosis
Recent Examples of Synonyms for psychosis
  1. dementia
  2. schizophrenia
  3. instability
Noun
  • The lifetime cost of dementia care alone now exceeds $400,000 per person.
    — John Samuels, Forbes.com, 30 June 2026
  • However, the study was observational and does not prove that caffeine directly prevents dementia.
    — Lauren Pastrana, CBS News, 29 June 2026
Definition of dementia
Noun
  • But their loving, attentive mother soon began displaying signs of schizophrenia.
    — Hadley Hall Meares, Vanity Fair, 3 July 2026
  • After Nijinsky began to show signs of schizophrenia, this mask, or persona, grew disturbed.
    — Cal Revely-Calder, New Yorker, 29 June 2026
Definition of schizophrenia
Noun
  • Peruvians voted in favor of Fujimori amid a surge in violent crime, extortion and years of political instability.
    — Bonny Chu, FOXNews.com, 1 July 2026
  • Leaders are facing a range of barriers to growth in 2026, including cybersecurity threats (58%), regulations and corporate tax rates (43%), inflation (42%), geopolitical instability (40%), and supply chain issues (35%).
    — Sentry Insurance, Forbes.com, 30 June 2026
Definition of instability

Browse Nearby Words

psychopathic
psychosis
psychotic
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Cite this Entry

“Psychosis.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/psychosis. Accessed 7 Jul. 2026.

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More from Merriam-Webster on psychosis

Nglish: Translation of psychosis for Spanish Speakers

Britannica.com: Encyclopedia article about psychosis

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