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con·ceit (kən-sēt)
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n.
1.
a. Unduly favorable estimation of one's own abilities or worth; overly positive self-regard.
b. Archaic Estimation or opinion of something, especially when favorable.
2.
a. A witty expression or fanciful idea: "opinionated and very funny in his conceits" (Paul Theroux).
b. A fanciful poetic image, especially an elaborate or exaggerated comparison.
c. Obsolete The result of intellectual activity; a thought or an opinion.
3.
a. A decorative article; a knickknack.
b. An extravagant, fanciful, and elaborate construction or structure: "a bulky stone conceit with its paws clenched" (Edie Meidev).
tr.v. con·ceit·ed, con·ceit·ing, con·ceits
1. Chiefly British To take a fancy to.
2. Obsolete To understand; conceive.

[Middle English, mind, conception, from Anglo-Norman conceite, from Late Latin conceptus; see CONCEPT.]

Synonyms: conceit, egoism, egotism, narcissism, vanity
These nouns denote excessively high regard for oneself: boasting that reveals conceit; the blatant egoism of his self-flattering memoir; arrogance and egotism that were obvious from her actions; narcissism that shut out everyone else; wounded his vanity by looking in the mirror.
Antonym: humility

The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2017 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
 

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