supercilious

a. 目中无人的,高傲的

Affecting an attitude of disdain or conceit; haughty and supercilious.

傲慢的摆出轻蔑或自满的样子的；高傲且盛气凌人的

The shop assistant was very supercilious towards me when I asked for some help.

我要买东西招呼售货员时，那个售货员对我不屑一顾。