shameless;impudent 卑鄙～despicable and shameless/厚颜～impudent/竟然～到这种地步be so impudent as to do all that/～谎言shameless(or brazen)lie/～滥言shameless slander/～之徒a shameless(or impudent)person (or scoundrel)a person who has lost all sense of shame; a person whose impudence knows no bounds