cocksureness cocksurely • cocksurety · · · Info · Definitions · Synonyms · Characters · · cocksureness · · Text Latin · · Script 12 · · Length Definitions · · · (noun) total certainty or greater certainty than circumstances warrant. Synonyms: certitude, overconfidence. · · Noun Definition 1 Synonyms · · · certitude · · Synonym 1 overconfidence · · Synonym 2 Characters · · c latin small letter c U+0063 e latin small letter e U+0065 k latin small letter k U+006B n latin small letter n U+006E o latin small letter o U+006F r latin small letter r U+0072 s latin small letter s U+0073 u latin small letter u U+0075