Definition of megalomania
1 : a mania (see mania 2a) for great or grandiose performance an outburst of wildly extravagant commercial megalomania — The Times Literary Supplement (London)
2 : a delusional mental illness that is marked by feelings of personal omnipotence and grandeur
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Examples of megalomania in a Sentence
Their CEO has an arrogance that borders on megalomania.
Recent Examples of megalomania from the Web
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Perhaps no one has embraced the role of villain more than the team’s owner, Joe Lacob, who let his Silicon Valley brashness border on Lex Luthor-like megalomania after Golden State’s sweep of the San Antonio Spurs in the Western Conference finals.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'megalomania'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Origin and Etymology of megalomania
New Latin
First Known Use: 1885
Other Psychology Terms
MEGALOMANIA Defined for English Language Learners
megalomania
playDefinition of megalomania for English Language Learners
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: a condition or mental illness that causes people to think that they have great or unlimited power or importance
Medical Dictionary
megalomania
playMedical Definition of megalomania
: a delusional mental illness that is marked by feelings of personal omnipotence and grandeur
Learn More about megalomania
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Britannica English: Translation of megalomania for Arabic speakers
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