Pronunciation: /ˈkɑkˌʃʊr/
adjective showing unwarranted confidence or arrogance
A1 He was cocksure that he would pass the exam.
A2 She was so cocksure of her abilities that she didn't even study for the test.
B1 His cocksure attitude often rubbed people the wrong way.
B2 Despite his cocksure demeanor, he still had moments of self-doubt.
C1 Her cocksure behavior masked a deep insecurity within.
C2 His cocksure nature often alienated those around him who valued humility.
formal He was so cocksure of his abilities that he never doubted himself.
informal Don't be so cocksure about winning the game, anything can happen.
slang He struts around like he's cocksure, but deep down he's just insecure.
figurative Her cocksure attitude was a shield to hide her insecurities.
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