In a manner that is characteristic of a snob; disdainfully or arrogantly.

घमंडपूर्वक

English Usage: She spoke snobbishly to her classmates as if they were beneath her.

Hindi Usage: उसने अपने सहपाठियों से घमंडपूर्वक बात की जैसे वे उसके स्तर के नहीं थे।