Overbearingly arrogant; ostentatiously self-important or self-aggrandizing.
Ever since she was placed in the gifted program, she's become so high and mighty that no one wants to be near her.
A social or economic group wielding undue power, influence or economic clout.
So much better than another as to be beyond comparison; matchless or unsurpassed.
Not able to be compared.
Something beyond compare; a thing with which there is no comparison.