megalomaniac

[ meg-uh-loh-mey-nee-ak ]

/ ˌmɛg ə loʊˈmeɪ niˌæk /

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See synonyms for megalomaniac on Thesaurus.com

noun

a person who has megalomania.

adjective

Also meg·a·lo·ma·ni·a·cal

[meg-uh-loh-muh-nahy-uh-kuhl], /ˌmɛg ə loʊ məˈnaɪ ə kəl/, meg·a·lo·man·ic

[meg-uh-loh-man-ik]. /ˌmɛg ə loʊˈmæn ɪk/. of, relating to, or suggesting megalomania or a person with it.

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Origin of megalomaniac

First recorded in 1885–90; megalo- + maniac

Words nearby megalomaniac

megalogastria, megaloglossia, megalohepatia, megalokaryocyte, megalomania, megalomaniac, megalomelia, megalopenis, megalophthalmus, megalopodia, megalopolis

How to use megalomaniac in a sentence

Dear Evan Hansen, so exquisitely engineered to give us all the feels, is really a story about a megalomaniac in training.
Don't Fall for Dear Evan Hansen|Stephanie Zacharek|September 24, 2021|Time
Errichetti was a foul-mouthed megalomaniac and “a crook at heart,” Greene wrote.
The Real Story and Lesson of the Abscam Sting in ‘American Hustle’|Jimmy So|December 17, 2013|DAILY BEAST
In the movie, T.E. Lawrence becomes a megalomaniac, a killer, and finally a mystery even to himself.
Spending a Day With Peter O’Toole|Malcolm Jones|December 16, 2013|DAILY BEAST
Recognizing that Messier was simply a corporate charlatan, Bronfman stepped up and led the charge to remove the megalomaniac.
Music's Misunderstood Genius|Peter Lauria|July 4, 2010|DAILY BEAST

Leading the megalomaniac set in the NFL is Dallas Cowboys owner, Jerry Jones.
Out-Rushing Rush|Samuel P. Jacobs|October 7, 2009|DAILY BEAST
Palin is the rare female politician who is as much a megalomaniac as her male peers.
Palin Has Really Gone Rogue|Michelle Goldberg|July 2, 2009|DAILY BEAST
He knew that megalomaniac Controllers were either captured or mobbed, and he had no wish to experience either.
The Penal Cluster|Ivar Jorgensen (AKA Randall Garrett)
Before the war he liked to imitate the English, and posed as a German megalomaniac.
Punch, or the London Charivari, Vol. 150, March 29, 1916|Various
Here was one Controller who neither looked nor acted like a megalomaniac.
The Penal Cluster|Ivar Jorgensen (AKA Randall Garrett)
Both worlds are egocentric, megalomaniac, filled to the full with unbridled human will and desire.
Darwin and Modern Science|A.C. Seward and Others
It is only in the study of the gloomily megalomaniac historian that aggressive war becomes a large and glorious thing.
New York Times Current History: The European War, Vol 2, No. 1, April, 1915|Various