Definition of "self-importance" [self•-im•por•tance]

• Excessively high regard for one's own importance or station; conceit. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "You should never set out to destroy the left or right, or conquer evil or good, because it will make you hallucinate delusions of self-importance."
• "Note that what is supposed to be an example of bad prose turns out to be a criticism of one character's "puerile humor and self-importance" and of the notion that "in a mad world only the madmen are sane," etc."
• "They have a grandiose sense of self-importance and entitlement, hog attention and crave admiration."