cockiest

英 [ˈkɒkɪɪst]

美 [ˈkɑkɪɪst]

adj.  过分自信的; 自以为是的
cocky的最高级

柯林斯词典

• ADJ-GRADED 骄傲自大的;自以为是的
  Someone who iscockyis so confident and sure of their abilities that they annoy other people.
  1. He was a little bit cocky when he was about 11 because he was winning everything.
     11岁左右的时候，他就有点自以为是，因为他那时从未失败过。