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megalomania

American  
[meg-uh-loh-mey-nee-uh] / ˌmɛg ə loʊˈmeɪ ni ə /

noun

  1. Psychiatry. a symptom of mental illness marked by delusions of greatness, wealth, etc.

  2. an obsession with doing extravagant or grand things.


megalomania British  
/ ˌmɛɡələʊməˈnaɪəkəl, ˌmɛɡələʊˈmeɪnɪə /

noun

  1. a mental illness characterized by delusions of grandeur, power, wealth, etc

  2. informal a lust or craving for power

"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

megalomania Cultural  
  1. Delusions of grandeur; an extreme form of egotism. Adolf Hitler is generally considered to have been a megalomaniac.


Other Word Forms

  • megalomaniac adjective
  • megalomaniacal adjective

Etymology

Origin of megalomania

First recorded in 1885–90; megalo- + -mania

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.

As to character, Mr. Brown portrays Roosevelt as a “flaming exhibitionist” with “megalomania” and “Napoleonic swagger.”

From The Wall Street Journal

Some superstars hide their megalomania under humility; Williams shields his tenderness with jokes about being a narcissist, only exposing his wounds in his muscular, vulnerable lyrics.

From Los Angeles Times

He added: “Ultimately I knew it was Cannes’ setting — more than a match for his own megalomania — that would convince him to come.”

From Seattle Times

As innumerable clinical psychologists have pointed out, both share megalomania and unbridled malignant narcissism.

From Salon

If people who try to help a narcissist validate their delusions, "it can swell out of control into megalomania, delusions of grandeur, and grotesque abuses of power."

From Salon