One who expresses or demonstrates arrogance or disdain for others.

अहंकारी

English Usage: His behavior as an arrogator made it difficult for him to maintain friendships.

Hindi Usage: एक अहंकारी के रूप में उसका व्यवहार उसे दोस्ती बनाए रखने में कठिनाइयों में डाल देता था।