barefaced
adj. 公然的，厚颜无耻的；不戴面具的；素颜的
例句
Huh! Barefaced cheek!
哈！厚颜无耻！
Barefaced? No no, this really is my hairy face -look!
没有胡子的脸？不不，我的脸实际上是毛茸茸的。看！
So Rob is a 'barefaced liar' because he's obviously telling a lie without any embarrassment.
因此罗布是一个“厚颜无耻的说谎者”，因为他显然是在不知羞耻地说谎。
