look down one's nose at everyone 目中无人

“目中无人”，中文成语，字面意思是“眼里没有别人（to one's eyes there is no other）”。通常形容一个人骄傲自大，谁都看不起（look down one's nose at everyone），含贬义（disapproving），英文可以翻译为“be supercilious，be overweening，consider everyone beneath one's notice”等。

例句：

他说话时语气傲慢，目中无人。

He spoke in a haughty, supercilious voice.

你看她的神气，简直是目中无人。

Just look at the airs she's giving herself, looking down her nose at everybody.

你表面谦虚，骨子里目中无人。

Your modesty is a cover for your overweening conceit.