a.
Haughty, proud, supercilious, lordly, disdainful, contumelious, insolent, cavalier, overbearing, overweening, assuming, magisterial, dogmatic, imperious, important, swelling, blustering, big, high, lofty, self-conceited, self-sufficient, self-assuming, self-important, self-asserting, self-confident, egotistic, self-assured, uppish.