mental illness

See synonyms for mental illness on Thesaurus.com
noun
  1. any of the various forms of psychosis or severe neurosis.

Origin of mental illness

1
First recorded in 1960–65
  • Also called mental disorder, mental disease .

Words Nearby mental illness

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

How to use mental illness in a sentence

British Dictionary definitions for mental illness

mental illness

noun
  1. any of various disorders in which a person's thoughts, emotions, or behaviour are so abnormal as to cause suffering to himself, herself, or other people

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

Scientific definitions for mental illness

mental illness

[ mĕntl ]


  1. Any of various psychiatric disorders or diseases, usually characterized by impairment of thought, mood, or behavior.

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