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Synonyms

derangement

American  
[dih-reynj-muhnt] / dɪˈreɪndʒ mənt /

noun

  1. the act of deranging.

  2. insanity.

  3. disarrangement; disorder.


derangement British  
/ dɪˈreɪndʒmənt /

noun

  1. the act of deranging or state of being deranged

  2. disorder or confusion

  3. psychiatry a mental disorder or serious mental disturbance

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of derangement

From the French word dérangement, dating back to 1730–40. See derange, -ment

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

And if you had that kind of a mother — or better, if you are that kind of a mother — the merry derangement O’Hara brought to her performances was soul-satisfying.

From Salon • Feb. 4, 2026

“Moore’s style was middle-class, whereas Squeaky Fromme was a genuine cultist. Moore represented the individual derangement of the period and Squeaky the social derangement,” said Starr.

From Los Angeles Times • Sep. 16, 2024

The chair of the judges, Tate Britain director Alex Farquharson, said the work was "bold" and "engaging" with a sense of "delirious derangement".

From BBC • Dec. 5, 2023

Where his alleged co-conspirators displayed varying levels of shock, despair, and derangement, Trump glowered at the camera, creating an indelible photo.

From Slate • Aug. 25, 2023

As I spoke I tried to read the faces of the officers and others in the room, scanning them for sympathy or anger or derangement.

From "Newjack: Guarding Sing Sing" by Ted Conover