Simple Definition of megalomania
: a condition or mental illness that causes people to think that they have great or unlimited power or importance
Full Definition of megalomania
1 : a mania for great or grandiose performance
2 : a delusional mental disorder that is marked by feelings of personal omnipotence and grandeur
megalomaniacplay \-ˈmā-nē-ˌak\ adjective or noun
megalomaniacallyplay \-mə-ˈnī-ə-k(ə-)lē\ adverb
Examples of megalomania in a sentence
Their CEO has an arrogance that borders on megalomania.
Origin and Etymology of megalomania
First Known Use: 1885
Medical Definition of megalomania
: a delusional mental illness that is marked by feelings of personal omnipotence and grandeur
Seen and Heard
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