supercilious

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

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”