arrogantI can't stand how arrogant he is!
prouddisapprovingDon't be too proud to admit you're wrong.
pompousdisapprovingWhat a pompous jerk!
self-importantdisapprovingThe room was filled with self-important politicians.
superiordisapprovingHer superior and smug manner made conversation unbearable.
conceitedHe's so conceited and self-centered, he thinks no one can understand his genius.
superciliousdisapprovingHis supercilious tone offended those around him.
condescendingdisapprovingThe management are so condescending to the staff and treats them like children.
patronizingHe gave her a patronizing smile.
haughtydisapprovingHe was haughty and cold.
snootyinformaldisapprovingI could never like such a snooty person.
imperiousHer imperious manner was intimidating.
hoity-toityinformaldisapprovingHe's a hoity-toity writer who acts like his books are too good for the rest of us.
sniffyinformaldisapprovingHe's pretty sniffy about my taste in music.