Megalomania

//ˌmɛɡəloʊˈmeɪniə// noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    A psychopathological condition characterized by delusional fantasies of wealth, power, or omnipotence. countable, uncountable

    "As to Ernest... He is quite as nervously broken down as I am but it manifests itself in different ways. His inclination is towards megalomania and mine towards melancholy."

  2. 2
    a psychological state characterized by delusions of grandeur wordnet
  3. 3
    Narcissistic personality disorder. countable, obsolete, uncountable
  4. 4
    An obsession with grandiose or extravagant things or actions. countable, uncountable

Synonyms

All synonyms
delusion of grandeurdelusion of grandeuregocentrismegocentrismegotism

Example

More examples

"I do not suffer from megalomania. Great people never have it."

Etymology

Borrowed from French mégalomanie; equivalent to megalo- + -mania.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.