[ thee-oh-mey-nee-uh, -meyn-yuh ]
/ ˌθi oʊˈmeɪ ni ə, -ˈmeɪn yə /


a delusional mental illness in which a person believes himself or herself to be God or specially chosen by God, as to found a religious order.

Origin of theomania

From New Latin, dating back to 1855–60; see origin at theo-, -mania

Related forms

the·o·ma·ni·ac [thee-oh-mey-nee-ak] /ˌθi oʊˈmeɪ niˌæk/, noun Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for theomania

  • Like Tolstoy, Nietzsche suffered from theomania and prophecy madness.

    Egoists|James Huneker
  • Dæmonomania differs widely from the mental disease called Theomania.

    Curiosities of Medical Experience|J. G. (John Gideon) Millingen

British Dictionary definitions for theomania


/ (ˌθɪəˈmeɪnɪə) /


religious madness, esp when it takes the form of believing oneself to be a god

Derived Forms

theomaniac, noun
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