UNREASON Synonyms: 26 Similar and Opposite Words

unreason

noun

Definition of unreason

as in dementia

Related Words

Relevance

Dissimilar Words

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 unreason 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

In some diseases such as frontal lobe dementia, which damages executive function instead of memory, tangles can accumulate without the presence of amyloid.

— Sandee LaMotte, CNN Money, 15 July 2026
Be aware that most group homes have a significant population of seniors with dementia.

— R. Eric Thomas, Mercury News, 14 July 2026

Definition of dementia

Noun

The Tampa Bay Buccaneers QB shares his method behind the madness.

— Dalton Ross, Entertainment Weekly, 15 July 2026
Neill plays Mark in director Andrzej Żuławski’s fearless study of madness, opposite the incredible Isabelle Adjani as his increasingly disturbed wife, Anna.

— Brian Tallerico, Vulture, 14 July 2026

Definition of madness

Noun

McCall tried to create a contrast between the locations, with the Cady clan’s surroundings having an overgrown quality reflecting the uncontrollable insanity at the heart of the family.

— Jim Hemphill, IndieWire, 10 July 2026
Dominguez entered pleas of not guilty and not guilty by reason of insanity to the charges.

— Darrell Smith, Sacbee.com, 7 July 2026

Definition of insanity

Noun

Amid the post-pandemic mania for luxury collectibles, Sotheby’s wine and spirits department achieved a record $132 million in sales in 2021.

— George Nelson for ArtNews, Robb Report, 9 July 2026
So much for the logo-mania that, for years, defined China’s Gen Z and millennial shoppers.

— CNN Money, CNN Money, 8 July 2026

Definition of mania

Noun

Blurring the boundaries between reality and delusion, psychological horror explores the mind in all its complexity, often leaving audiences questioning their own perceptions.

— Ryan Lattanzio, IndieWire, 8 July 2026
In one case, the Jupiter family filed a wrongful death lawsuit against Google, saying the company’s chatbot, Gemini, contributed to their son’s death by fueling severe delusions and eventually coaching him through taking his own life.

— Laurie Mermet, Sun Sentinel, 6 July 2026