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self-important

American  
[self-im-pawr-tnt, self-] / ˈsɛlf ɪmˈpɔr tnt, ˌsɛlf- /

adjective

  1. having or showing an exaggerated opinion of one's own importance; pompously conceited or haughty.

self-important British  

adjective

  1. having or showing an unduly high opinion of one's own abilities, importance, etc

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Etymology

Origin of self-important

First recorded in 1765–75

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.