adjective cock·sure \ˈkäk-ˈshr\

: having or showing confidence in a way that is annoying to other people

Full Definition of COCKSURE

:  feeling perfect assurance sometimes on inadequate grounds
:  marked by overconfidence or presumptuousness :  cocky
cock·sure·ly adverb
cock·sure·ness noun

Origin of COCKSURE

probably from 1cock + sure
First Known Use: 1608

Synonym Discussion of COCKSURE

sure, certain, positive, cocksure mean having no doubt or uncertainty. sure usually stresses the subjective or intuitive feeling of assurance <felt sure that I had forgotten something>. certain may apply to a basing of a conclusion or conviction on definite grounds or indubitable evidence <police are certain about the cause of the fire>. positive intensifies sureness or certainty and may imply opinionated conviction or forceful expression of it <I'm positive that's the person I saw>. cocksure implies presumptuous or careless positiveness <you're always so cocksure about everything>.


Next Word in the Dictionary: cocksuretyPrevious Word in the Dictionary: cocksuckingAll Words Near: cocksure
How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears