WordNet (r) 3.0 (2006):
elitist n 1: someone who believes in rule by an elite group [ant: egalitarian, equalitarian]Moby Thesaurus II by Grady Ward, 1.0:
20 Moby Thesaurus words for "elitist": Brahmin, U, aristocratic, dictatorial, egghead, high and mighty, highbrow, highbrowed, hubristic, imperious, intellectual, intellectualistic, lordly, magisterial, mandarin, masterful, name-dropper, prig, snob, tufthunter