su·per·cil·ious 
/ˌsu:pɚˈsɪlijəs/ adjective
/ˌsu:pɚˈsɪlijəs/ adjective [more supercilious; most supercilious] formal + disapproving : having or showing the proud and unpleasant attitude of people who think that they are better or more important than other people
▪ a supercilious professor ▪ a supercilious tone/attitude ▪ supercilious behavior
▪ a supercilious professor ▪ a supercilious tone/attitude ▪ supercilious behavior
— su·per·cil·ious·ly adverb
▪ He glanced at her and smiled superciliously.
▪ He glanced at her and smiled superciliously.
— su·per·cil·ious·ness noun [noncount]
