"自大"的意思是过度自信或自命不凡。在英语中，这个词通常用"arrogant"来表示。

来源：这个词来自拉丁语"arrogantem"，意思是"拿起，抬起，自大"。

例句：

He was so arrogant that he thought he could do anything he wanted. 他自大得以为自己能做任何他想做的事。

She has an arrogant attitude that turns people off. 她有一种自大的态度，使人反感。

His arrogance was his downfall. 他的自大是他的毁灭。