cock·sure
adjective/ˌkɒkˈʃʊə(r)/, /ˌkɒkˈʃɔː(r)/
/ˌkɑːkˈʃʊr/
(old-fashioned, informal)- confident in a way that is annoying to other people and that they might find offensive
过分自信的；自高自大的；自以为是的 Word Originearly 16th cent.: from archaic cock (a euphemism for God) + sure; later associated with cock.