megalomaniac

[ meg-uh-loh-mey-nee-ak ]
/ ˌmɛg ə loʊˈmeɪ niˌæk /
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noun

a person afflicted with megalomania.

adjective

Also meg·a·lo·ma·ni·a·cal [meg-uh-loh-muh-nahy-uh-kuh l] /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 who is afflicted with it.

Origin of megalomaniac

First recorded in 1885–90; megalo- + maniac
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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