Also found in: Thesaurus.


1. Completely sure; certain.
2. Too sure; overconfident.

cock′sure′ly adv.
cock′sure′ness n.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.cocksureness - total certainty or greater certainty than circumstances warrant
certainty - the state of being certain; "his certainty reassured the others"
References in classic literature ?
"But how can I get out of making a last raid?" I demanded, with the cocksureness of youth.
Dreams must not either be emerging out of cocksureness or even be ever anchored in the seas of overconfidence.
I dare not ask for improved memory, but for a growing humility and a lessening cocksureness when my memory seems to clash with the memories of others.
Butt puts the attacker's cocksureness down to youth but insists there's no point trying to stamp it out of his game.
Barzalona has been assured he will continue to get rides but he may need to rediscover the cocksureness in evidence at Epsom to ensure the camber of his career in Britain stays on an incline.
(5) Kristiaan Versluys makes no mention of The Zero, even though it could be troped into his privileging of those 9/1 I novels that "resist permanent closure" while they also "affirm the humanity of the befuddled individual grouping for an explanation, express the bewilderment of the citizen as opposed to the cocksureness of the killers, [and] give voice to stuttering and stammering as a precarious act of defiance" (13).
He'd slaked himself with women and after the first flush of cocksureness, they'd meant nothing.
Unsympathetic readers who hope to find new verbal tokens of such disagreeable and widely alleged Rumsfeldian personality traits as arrogance, abrasiveness, raw egotism, and cocksureness, may be disappointed.
Bora Altas, the 5-year-old Yusuf, exudes none of the annoying cocksureness that often destroys child actors' performances.