egomaniacal

American  

[ee-goh-muh-nahy-i-kuhl, eg-oh-] / ˌi goʊ məˈnaɪ ɪ kəl, ˌɛg oʊ- /

adjective

1. displaying egomania; abnormally or extremely selfish and self-centered, with an excessively high opinion of oneself.

   His followers are eerily similar to those of another egomaniacal psychopath in the 1930s—Adolf Hitler.

   Professor Lang is a vain, strutting buffoon, given to egomaniacal rages and ridiculous posturing.

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Other Word Forms

Derived Forms

• egomaniacally
  adverb

Etymology

Origin of egomaniacal

First recorded in 1895–1900; egomaniac ( def. ) + -al ¹ ( def. )

Example Sentences

His Truth Social posts are more self-referential and egomaniacal: in 2026, half of his posts have used first-person pronouns — sometimes more than 12 times in a single post.

From Salon • May 26, 2026

Antony Starr brings to life another type of monster: an egomaniacal, king-of-the-world superhero in ‘The Boys.’

From Los Angeles Times • May 21, 2026

Dabney Coleman, an award-winning television and movie actor best known for his over-the-top portrayals of garrulous, egomaniacal characters, died on Thursday at his home in Santa Monica, Calif. He was 92.

From New York Times • May 17, 2024

“In the hands of a lesser actor, Giorgio could easily come across as a one-dimensional, egomaniacal bully,” says Read.

From Seattle Times • Mar. 23, 2023

His egomaniacal behaviour and his almost Rousseauesque fear and suspicion of others were only the external manifestations of his inner discrepancies.

From The Case Of Wagner, Nietzsche Contra Wagner, and Selected Aphorisms. by Nietzsche, Friedrich Wilhelm