arrogant
/ˈærəgənt; `ærəˇənt/ adj behaving in a proud and superior manner; showing too much pride in oneself and too little consideration for others 傲慢的; 自大的: an arrogant tone of voice 傲慢的口气 * It's arrogant of you to assume you'll win every time. 你自以为每次都能赢, 未免太自大了.