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
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'cocksure.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.