megalomaniac

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

noun

1. a person who has megalomania.

adjective

1. Also megalomaniacal megalomanic of, relating to, or suggesting megalomania or a person with it.

Word History and Origins

Origin of megalomaniac¹

First recorded in 1885–90; megalo- + maniac

Related Words

• individualistic 
• narcissistic 
• pompous 
• self-absorbed 
• self-centered 
• self-serving 
• selfish