supercilious in WordNet English dictionary

1. having or showing arrogant superiority to and disdain of those one views as unworthy
   "some economists are disdainful of their colleagues in other social disciplines"; "haughty aristocrats"; "his lordly manners were offensive"; "walked with a prideful swagger"; "very sniffy about breaches of etiquette"; "his mother eyed my clothes with a supercilious air"; "a more swaggering mood than usual"- W.L.Shirer
   disdainful  haughty  imperious  lordly  overbearing  prideful  sniffy  supercilious  swaggering 
   
2. expressive of contempt
   "curled his lip in a supercilious smile"; "spoke in a sneering jeering manner"; "makes many a sharp comparison but never a mean or snide one"
   supercilious  sneering  snide