B2unpleasantly proud and behaving as if you are more important than, or know more than, other people: I found him arrogant and rude.Showing arrogance and conceitConfidence and self-assuranceBoastingarrogance
/ˈær.ə.ɡəns//ˈer-/noun[U]›He has a self-confidence that is sometimes seen as arrogance.Saddening, shocking and upsettingarrogantly
/-li/adverb›The authorities had behaved arrogantly, she said.Showing arrogance and conceitConfidence and self-assuranceBoasting