Synonyms and related words :
arrogant, audacious, big, brash, bumptious, cold, condescending, contumelious, cool, disdainful, domineering, familiar, forward, haughty, high-faluting, high-flown, high-headed, high-nosed, hoity-toity, hubristic, insolent, insulting, lofty, obtrusive, overbearing, overpresumptuous, overweening, patronizing, presuming, presumptuous, procacious, proud, purse-proud, pushful, pushing, pushy, self-asserting, self-assertive, stuck-up, superior, toplofty, uppish, upstage