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egomaniac

[ ee-goh-mey-nee-ak, eg-oh- ]
/ ˌi goʊˈmeɪ ni æk, ˌɛg oʊ- /
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See synonyms for: egomaniac / egomaniacal on Thesaurus.com

noun
someone who displays egomania, a tendency to refer to oneself excessively and boastfully:Academic research appears to be a rat race of high-strung egomaniacs fighting over grant money, recognition, and their scientific legacies.
someone who displays excessive selfishness and self-centeredness:Many have claimed that social media will turn us all into narcissists, egomaniacs, and internet addicts.

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Origin of egomaniac

OTHER WORDS FROM egomaniac

e·go·ma·ni·a·cal [ee-goh-muh-nahy-i-kuhl, eg-oh-], /ˌi goʊ məˈnaɪ ɪ kəl, ˌɛg oʊ-/, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

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