Related formso·ver·con·fi·dence, nouno·ver·con·fi·dent·ly, adverb
Examples from the Web for over-confident
Yet, there is also a major problem with over-rich and over-confident oligopolies.
Yale was over-confident; Harvard was hopeful, but filled with fears.Frank Merriwell's Races|Burt L. Standish
I shall never be over-confident in such matters, I think, any more.The Letters of Charles Dickens|Charles Dickens
He was over-confident, and thought he understood her better than he really did.To Leeward|F. Marion Crawford