Haughty and Imperious

haughty- arrogant; vainly proud
imperious- arrogantly domineering or overbearing

Haughty Hillary was also in my fifth grade class. She was Dejason's girlfriend. She was the most stuck up person I had ever met. She thought she was the most beautiful and smartest person on the face of the earth. She flaunted her looks and was very imperious toward the other girls in the class.