adjective Etymology: probably from 1cock + sure Date: 1608 feeling perfect assurance sometimes on inadequate grounds, marked by overconfidence or presumptuousness ; cocky , see: sure ~ly adverb ~ness noun
COCKSURE
Meaning of COCKSURE in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012