unapologetic
adjective uk/ˌʌn.ə.pɒl.əˈdʒet.ɪk/ us/ˌʌn.ə.pɑː.ləˈdʒet̬.ɪk/
不道歉的，不认错的
not sorry about having caused someone problems or unhappiness, even though people might expect you to be sorry
They were very rude and completely unapologetic about it. 他们非常粗鲁，对此毫无歉意。