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Synonyms

mental disorder

British  

noun

  1. law (in England, according to the Mental Health Act 1983) mental illness, arrested or incomplete development of mind, psychopathic disorder, or any other disorder or disability of the mind

"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

Other Word Forms

  • mentally disordered adjective

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.

This assessment accounted for age, sex, ethnicity, tobacco use, type of mental disorder, and current treatments.

From Science Daily • Dec. 4, 2025

The story centers on Alice, an ordinary Middle American girl who begins to suffer from a mental disorder while enrolled at the University of Oklahoma.

From The Wall Street Journal • Oct. 17, 2025

A psychological assessment showed no evidence of Saadi having a diagnosed mental disorder and he had only features of autistic spectrum disorder.

From BBC • Mar. 28, 2025

More than 34,000 inmates — more than a third of the California prison population — are considered to have some sort of serious mental disorder.

From Los Angeles Times • Mar. 19, 2025

It’s almost a mental disorder, but there’s a sort of scale.

From "Made You Up" by Francesca Zappia

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.