supercilious
adjective /ˌsuːpəˈsɪliəs/
  /ˌsuːpərˈsɪliəs/
(disapproving)- behaving towards other people as if you think you are better than they are傲慢的;高傲的 - The dress shop assistant was very supercilious.服装店店员很不卑不亢。 
- She gave a supercilious smile.她高傲地笑了笑。 
 词源early 16th cent.: from Latin superciliosus ‘haughty’, from supercilium ‘eyebrow’.
- The dress shop assistant was very supercilious.