egotistic

1. characteristic of those having an inflated idea of their own importance

2. characteristic of false pride; having an exaggerated sense of self-importance;

"a conceited fool"

"an attitude of self-conceited arrogance"

"an egotistical disregard of others"

"so swollen by victory that he was unfit for normal duty"

"growing ever more swollen-headed and arbitrary"

"vain about her clothes"