barefaced

1. ADJ You use barefaced to describe someone's behaviour when you want to emphasize that they do not care that they are behaving wrongly. 露骨的; 公开的; 厚颜无耻的[ADJ n] [强调]

...a barefaced confidence trick. ...公开的骗局。

...crooked politicians who tell bare-faced lies. ...满嘴无耻谎言的无良政客。