[kok-shoo r, -shur]
- 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.
Origin of cocksure
SynonymsSee more synonyms on Thesaurus.com
1. cocky, arrogant, conceited.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for cocksure
How could they have been so cocksure in the face of so much contrary opinion from seemingly well qualified people?Iraq: What We Got Wrong and Why
March 5, 2013
Cocksure and unafraid, our protagonist does what he always does: he invites the ghost to dinner.Don Giovanni in Los Angeles: Mozart Meets the Future
May 20, 2012
But like millions of others, I went through phases when I was cocksure I could outsmart the market.Return of the Day Trader
April 9, 2009
In the end, the once cocksure president is left struggling to come to grips with reality.My W and Oliver Stone's
October 17, 2008
I liked to hear her knock my big men in her cocksure superior way.The Harbor
In his operations he was a cocksure individual, Mr. Craig was!Joan of Arc of the North Woods
And he also will learn not to be cocksure and jump at conclusions.Pluck on the Long Trail
Edwin L. Sabin
Gladstone was remarking but the other day, ‘Harding was always so cocksure.’Robert Orange
John Oliver Hobbes
I was so taken aback,” he explained; “he was so ignorant, so cocksure, that he made me mad.The White Mice
Richard Harding Davis
- overconfident; arrogant
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
Word Origin and History for cocksure
Online Etymology Dictionary, © 2010 Douglas Harper