sardonic
adjective uk/sɑːˈdɒn.ɪk/ us/sɑːrˈdɑː.nɪk/
讥讽的，冷嘲的，轻蔑的
showing little respect in a humorous but unkind way, often because you think that you are too important to consider or discuss a matter
a sardonic smile/look/comment 讥讽的微笑／嘲讽的表情／尖刻的评论