swollen headed
/ˈswoʊlən ˈhɛdɪd/
adjective
- Having an exaggerated sense of one's own importance; conceited or arrogant.
- She was so swollen-headed that she thought she was better than everyone else.
- The swollen-headed manager refused to listen to anyone's advice.
- After winning the award, he became swollen-headed and ignored his old friends.