Related formscock·sure·ly, adverbcock·sure·ness, noun
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?
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|Isabel Wilkinson|May 20, 2012|DAILY BEAST
But like millions of others, I went through phases when I was cocksure I could outsmart the market.
In the end, the once cocksure president is left struggling to come to grips with reality.
It would have done my heart good for the rest of my life if I could have got away then and fooled that Hun, he was so cocksure.Outwitting the Hun|Pat O'Brien
It had slowly dawned upon Fred that he was listening to an appeal for mercy, a cry for help from this jaunty, cocksure brother.Otherwise Phyllis|Meredith Nicholson
This fiance of mine that you seem so cocksure about has no existence.When Ghost Meets Ghost|William Frend De Morgan
Yet Big Tom was plainly not so cocksure of himself as he had been, while the scoutmaster wore an air of complete confidence.The Rich Little Poor Boy|Eleanor Gates
I fear I grow too cocksure of my literary attainments out here, with none to check me.An Ocean Tramp|William McFee