extreme rudeness without any ability to understand that your behaviour is not acceptable to other people
发音
例句
1. This is a despicable fraud. Just imagine that he has the effrontery to say it. 这是一个可耻的骗局。他竟然有脸说这样的话。 2. One could only gasp at the sheer effrontery of the man. 那人十足的厚颜无耻让人们吃惊得无话可说。