megalomania
noun
meg·a·lo·ma·nia
ˌme-gə-lō-ˈmā-nē-ə 
-nyə
1
: a mania (see mania sense 2a) for great or grandiose performance
an outburst of wildly extravagant commercial megalomania—
The Times Literary Supplement (London)
The Times Literary Supplement (London)2
: a delusional mental illness that is marked by feelings of personal omnipotence and grandeur
Examples of megalomania in a Sentence
Their CEO has an arrogance that borders on megalomania.
Recent Examples on the Web
Syphilis has been attributed by modern academics to the megalomania and violence of dictators and thugs and, equally, to the narcissism and creativity of artists and writers.
—Rebecca Kreston, Discover Magazine, 1 Apr. 2016
The ceremony has always been a mix of bad taste, earnest sincerity, theater-kid enthusiasm, and Hollywood megalomania.
—Vulture, 23 Feb. 2022
That this is offered as an amusing example of flair and determination instead of a warning about subterfuge and megalomania means that Hare has either fallen under the Great Man’s spell or wants to make sure the audience has.
—Jesse Green, New York Times, 26 Oct. 2022
Some of these clips are obscure; many more are world-famous stunts of rock-star megalomania.
—Rob Sheffield, Rolling Stone, 16 Sep. 2022
See All Example Sentences for megalomania
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Rebecca Kreston, Discover Magazine, 1 Apr. 2016
The ceremony has always been a mix of bad taste, earnest sincerity, theater-kid enthusiasm, and Hollywood megalomania.
—Vulture, 23 Feb. 2022
That this is offered as an amusing example of flair and determination instead of a warning about subterfuge and megalomania means that Hare has either fallen under the Great Man’s spell or wants to make sure the audience has.
—Jesse Green, New York Times, 26 Oct. 2022
Some of these clips are obscure; many more are world-famous stunts of rock-star megalomania.
—Rob Sheffield, Rolling Stone, 16 Sep. 2022
See All Example Sentences for megalomania
Cite this Entry
“Megalomania.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/megalomania. Accessed 29 Jul. 2025.
Copy CitationMedical Definition
megalomania
noun
meg·a·lo·ma·nia
ˌmeg-ə-lō-ˈmā-nē-ə, -nyə
: a delusional mental illness that is marked by feelings of personal omnipotence and grandeur
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