Arrogant : having or revealing an exaggerated sense of one's own importance or abilities.Impolite : not having or showing good manners; rude.Uncivilised : (of a place or people) not socially, culturally, or morally advanced.Unkind : inconsiderate and harsh to others.Barbarian : an uncultured or brutish person.Synonym of Barbarian is Uncivilised