supercilious supercilious /ˌsuːpɝˈsɪliːəs/

adjective

1. () Having or showing arrogant superiority to and disdain of those one views as unworthy  ( disdainful , imperious , lordly , haughty , overbearing , prideful , sniffy [Informal] , orgulous [Archaic] , toplofty [Informal, American] , supercilious , swaggering )
   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
   some economists are disdainful of their colleagues in other social disciplines
    Haughty aristocrats
   haughty aristocrats
    His lordly manners were offensive
   his lordly manners were offensive
    Walked with a prideful swagger
   walked with a prideful swagger
    Very sniffy about breaches of etiquette
   very sniffy about breaches of etiquette
    His mother eyed my clothes with a supercilious air
   his mother eyed my clothes with a supercilious air
    A more swaggering mood than usual
   a more swaggering mood than usual
   
2. Expressive of contempt  ( sneering , snide , supercilious )
   expressive of contempt
    Curled his lip in a supercilious smile
   curled his lip in a supercilious smile
    Spoke in a sneering jeering manner
   spoke in a sneering jeering manner
    Makes many a sharp comparison but never a mean or snide one
   makes many a sharp comparison but never a mean or snide one