high-and-mighty

形容词 high-and-mighty:

1. offensively self-assured or given to exercising usually unwarranted power
   同义词：autocratic, bossy, dominating, magisterial, peremptory

high-and-might.y

adj.（形容词）
Marked by arrogance; haughty and overbearing.
神气活现的；自高自大的，傲慢的

【引伸】
high and mighty
adv.（副词）
n.（名词）