demented

adjective

di-ˈmen-təd How to pronounce demented (audio)
Definition of dementednext
as in psychotic
unable to think in a clear or sensible way a thoughtful movie about a demented man trying to survive on the street

Synonyms & Similar Words

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Antonyms & Near Antonyms

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 demented In our times, whether a demented president would order an unwarranted nuclear attack is just one ominous concern. — Sun Sentinel Editorial Board, Sun Sentinel, 17 Apr. 2026 Cage fans already knew the actor could play twisted roles well, but his demented performance as the Satan-worshipping killer still disturbed and delighted audiences. — Angelique Jackson, Variety, 14 Apr. 2026 Along with all her obligations, Tonina is taking care of her demented and bedridden mother. — Matthew Carey, Deadline, 8 Apr. 2026 Allowing a sick country with demented leadership have a nuclear weapon, that's a war crime. — Alexandra Hutzler, ABC News, 7 Apr. 2026 See All Example Sentences for demented
Recent Examples of Synonyms for demented
  1. psychotic
  2. insane
  3. mad
  4. maniacal
  5. mental
Adjective
  • Those diagnoses included schizophrenia spectrum and other psychotic disorders, borderline personality disorder, post-traumatic stress syndrome, major depressive disorder, and bipolar or related disorders.
    — Ariane Lange, Sacbee.com, 6 July 2026
  • The defense argued that Bland had a psychotic episode due to a COVID infection.
    — Grethel Aguila, Miami Herald, 26 June 2026
Definition of psychotic
Adjective
  • England’s 2-1 victory against Mexico — and that insane Azteca Stadium crowd — also was richly deserved.
    — Miami Herald, Miami Herald, 7 July 2026
  • Allowing Trump to declare insane levels of tariffs would have been really bad for the economy and bad for Republicans.
    — Isaac Chotiner, New Yorker, 6 July 2026
Definition of insane
Adjective
  • Getting mad about missing out on signing Anfernee Simons won’t change that.
    — Nick Friedell, New York Times, 4 July 2026
  • When World Cup season descends upon soccer-mad Brazil, green and yellow banners decorate restaurants, bars and apartment buildings, streets are painted with flags and soccer balls, and discussions of the beloved national team's games are ubiquitous.
    — ABC News, ABC News, 3 July 2026
Definition of mad
Adjective
  • Erling Haaland, Norway’s large, maniacal striker, has several exceedingly Norwegian traits.
    — Zach Helfand, New Yorker, 30 June 2026
  • The president as a maniacal urban planner is a white-knuckle ride, with Washington — and Washingtonians — just holding on for dear life.
    — Maureen Dowd, Mercury News, 23 June 2026
Definition of maniacal
Adjective
  • The young adults struggle with poor mental, physical health, negative judgments of their own personal character, finding meaning in life, financial security, and the quality of their relationships.
    — Emma Burleigh, Fortune, 9 July 2026
  • Each path promises the same payoff, consistent cold-water immersion for recovery, stress management and mental resilience, but the setup costs, maintenance demands and daily user experience diverge sharply.
    — Samantha Agate, Fort Worth Star-Telegram, 9 July 2026
Definition of mental

Browse Nearby Words

demeans
demented
dementedness
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Cite this Entry

“Demented.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/demented. Accessed 11 Jul. 2026.

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Nglish: Translation of demented for Spanish Speakers

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