brazen
单词辨析：
指对自己的错误或不道德行为不感到羞耻的。
He became furious at her brazen admission that she had been cheating on him.
她恬不知耻地承认自己一直对他不忠，这令他非常愤怒。
只作定语，主要表示某人明知某种不实的或令人不快的行为或说法冒犯了他人，却完全不在乎。
We can reveal his barefaced lies.
我们可以揭露他的无耻谎言。
强调坏事或错误显而易见的，但应承担责任之人却若无其事，毫不在乎。
blatant discrimination
公然的歧视
This is in blatant disregard of judicial fairness.
这是对司法公正明目张胆的践踏。
指人或行为粗鲁无礼、有时令人哭笑不得的。
a cheeky grin
厚颜无耻的咧嘴一笑
Don't be a coward! They are getting cheeky.
别这么懦弱！他们越来越放肆了。
Stop bothering me, you cheeky little devil!
让我安静会儿，你这个厚脸皮的小家伙！
相关例句：
To brazen things out only provokes greater suspicion and hostility.
厚着脸皮干下去只会引起更大的怀疑和敌对行为。
If you are caught simply argue that 'everyone does it' and brazen it out
要是被逮住了，你就说“大家都这样干”，然后硬着头皮挺下去。
When I stated my willingness to order a limited strike against the Assad regime in response to the brazen use of chemical weapons, I did not do so lightly.
当我表示，我愿下令对阿萨德政权实行有限打击，以此对肆无忌惮使用化学武器作出回应时，并非戏言。
She had become brazen about the whole affair.
她对整件事已经不感到羞耻了。
What a brazen guy! or how cheeky!
真是个老脸！
That brazen guy told lie after lie.
那个脸厚的家伙谎话连篇。