arrogant and con ceited;bumptious; false pride; get (/grow) too big for one’s boots;haughty; ride the high horse;self important; think one is the whole cheese;think too much of oneself; vainglorious ? 這家伙那么～，真令人受不了。Nobody can put up with that fellow who is so arrogant and conceited!
狂妄自大
arrogant and conceited
狂妄自大kuánɡ wànɡ zì dà
形容人自高自大，目空一切。be arrogant and conceited, ride the high horse, false pride, high and mighty