overconfident
(a.)過於自信的,自負的
O·ver·con·fi·dent a. Confident to excess. -- O*ver*con*fi*dent*ly, adv.
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overconfident
adj : marked by excessive confidence; "an arrogant and cocksure
materialist"; "so overconfident and impudent as to
speak to the queen"; "the less he knows the more
positive he gets" [syn: cocksure, positive]