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cocksure

[ kok-shoor, -shur ]
/ ˈkɒkˈʃʊər, -ˈʃɜr /
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adjective
perfectly sure or certain; completely confident in one's own mind: She was cocksure that she was able to do the job better than anyone else.
too certain; overconfident: He was so cocksure he would win the election that he didn't even bother to campaign.
Obsolete. perfectly secure or safe.
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The rainy weather could not ________ my elated spirits on my graduation day.
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Origin of cocksure

First recorded in 1510–20; cock1 + sure

OTHER WORDS FROM cocksure

cocksurely, adverbcocksureness, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use cocksure in a sentence

British Dictionary definitions for cocksure

cocksure
/ (ˌkɒkˈʃʊə, -ˈʃɔː) /

adjective
overconfident; arrogant

Derived forms of cocksure

cocksurely, adverbcocksureness, noun

Word Origin for cocksure

C16: of uncertain origin
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
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