UNREASON Synonyms: 26 Similar and Opposite Words

unreason

noun

Definition of unreason

as in dementia

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Recent Examples of unreason Reason had to triumph in all things, or else waves of unreason, of which the Muckers were a model, would insinuate themselves into daily life. — Adam Gopnik, New Yorker, 17 Aug. 2026 In that book, his characters confront the decline of American public speech—its degeneration into varieties of unreason and the proto-fascist violence that follows. — Nicholas Dames, The Atlantic, 7 Apr. 2026 For all Eggers’s dramatization of unreason, his images sit heavily onscreen awaiting something more significant than mere admiration—interpretation. — Richard Brody, The New Yorker, 23 Dec. 2024 Like many politicians, Khan is trying to reason with a maelstrom of unreason. — Peter Guest, WIRED, 26 Mar. 2024 The country has entered what can only be characterized as an age of unreason, with large swaths of its population embracing wild conspiracy theories. — Jonathan Kirshner, Foreign Affairs, 29 Jan. 2021

Recent Examples of Synonyms for unreason

Noun

However, human studies have not demonstrated that nicotine can prevent dementia, slow Alzheimer’s disease progression, preserve long-term cognitive function or improve outcomes in Parkinson’s disease.

— Hasmeena Kathuria, The Conversation, 22 Sep. 2026
With science linking more health benefits to caffeine, from better heart health and a lower risk of dementia, this pathway might just be the key force behind it.

— Maggie Ryan, Flow Space, 21 Sep. 2026

Definition of dementia

Noun

Descano’s side went along with his insanity defense after approving a mental health evaluation by psychologist Eric Drogin, court records show.

— Hudson Crozier, The Washington Examiner, 21 Sep. 2026
Eleven of the 12 jurors accepted the defense’s argument that Clancy had acute postpartum psychosis and should be found not guilty by reason of insanity.

— The Week US, TheWeek, 21 Sep. 2026