cocksure infallible绝对可靠的
to become cocksure自以为是
be cocksure of过分确信
A cocksure person过于自信的人
"an arrogant and cocksure materialist"
同义词：overconfidentpositive
ADJ（形容词） Someone who is cocksure is so confident and sure of their abilities that they annoy other people. 自负的 [老式]