自大的
bigheaded adj : used colloquially of one who is overly conceited or arrogant; "a snotty little scion of a degenerate family"-Laurent Le Sage; "they're snobs--stuck-up and uppity and persnickety" [syn: {persnickety}, {snooty}, {snot-nosed}, {snotty}, {stuck-up}, {too big for one's breeches}, {uppish}]