demented
adj/dɪˈmɛntɪd/
Etymology Past participle of dement + -ed, from Latin dēmentāre.
1
Insane; mentally ill.
- So while Ralph generally seems to inhabit a different, more glorious and joyful universe than everyone else here his yearning and heartbreak are eminently relateable. Ralph sometimes appears to be a magically demented sprite who has assumed the form of a boy, but he’s never been more poignantly, nakedly, movingly human than he is here.2012 August 5, Nathan Rabin, “TV: Review: THE SIMPSONS (CLASSIC): “I Love Lisa” (season 4, episode 15; originally aired 02/11/1993)”, in AV Club, archived from the original on 28 Dec 2012:
- In the past week, he [Donald Trump] attacked the “truly sick and demented people” in the news media, […], not even counting the “deranged scumbags” in Iran.2026 March 16, Peter Baker, “In Choosing ‘Epic Fury,’ Trump Names a War and Defines His Presidency”, in The New York Times, New York, N.Y.: The New York Times Company, →ISSN, →OCLC:
2
Having dementia.
3
Informal Crazy; ridiculous.
- a demented idea
- One of these new recruits is Jagger Froid, a demented alien from the Black Hole Galaxy, who dishes out punishment with a laser-sharp tongue.c. 1990, How to Play Super C (PDF) (instruction manual), Konami, page 4
1 more example
- Literally nothing happens, apart from Donaldson counting to 100,000. In this sense, it is nothing like his later videos, defined as they are by a near-demented commitment to maximum viewer-stimulation.2025 June 3, Mark O’Connell, “‘The Mozart of the attention economy’: why MrBeast is the world’s biggest YouTube star”, in The Guardian, archived from the original on 07 Jun 2025:
- Derived terms
- academented, dementedly, dementedness, nondemented, pseudodemented, semidemented, undemented