不要脸的意思是指一个人没有廉耻、不顾他人感受，做出无耻的行为。这种行为常常会让人感到厌恶和愤怒，也会损害自己的声誉和形象。

How to pronounce: [bù yào liǎn]

Usage:

不要脸可以用来形容一个人的品德或行为，通常带有贬义。它可以用来指责某人做出无耻的事情，也可以用来形容某人自私、虚伪或缺乏道德准则。

Examples:

1. 他做了那么多坏事，还一点都不觉得羞耻，真是太不要脸了！

He did so many bad things and didn't feel any shame at all. He's really shameless!

2. 她为了得到那份工作，竟然向老板撒谎说自己有很多经验，真是太不要脸了！

She lied to the boss about having a lot of experience just to get that job. She's really shameless!

3. 这个政客为了争取选票，竟然故意诋毁对手的名誉，太不要脸了！

This politician deliberately slandered his opponent's reputation just to win votes. He's really shameless!

4. 他明明知道错了还一副无所谓的样子，真是太不要脸了！

He clearly knows he's wrong but still acts like it doesn't matter. He's really shameless!

5. 这家公司为了利润，不顾员工的生活质量，太不要脸了！

This company is shameless for putting profits above the quality of life of its employees.

Synonyms and Usage:

1. 无耻 (wú chǐ) - shameless, without any sense of shame

Example: 他做出这种卑鄙的行为，真是太无耻了！(He did such a despicable thing, he's really shameless!)

2. 不知廉耻 (bù zhī lián chǐ) - without any sense of shame or integrity

Example: 这些政客为了自己的利益不惜损害利益，真是太不知廉耻了！(These politicians are shamelessly sacrificing the country's interests for their own gain, they have no integrity!)

3. 自私 (zì sī) - selfish, self-centered

Example: 她总是只顾着自己的感受，根本不在乎别人，太自私了！(She only cares about her own feelings and doesn't care about others at all, she's so selfish!)

4. 虚伪 (xū wěi) - hypocritical, insincere

Example: 她表面上装出一副善良的样子，其实内心非常虚伪。(She pretends to be kind on the surface, but she's actually very insincere.)

Editor's summary:

不要脸是一个带有强烈贬义的词语，用来形容一个人没有廉耻、不顾他人感受，做出无耻的行为。它可以用来指责某人做出无耻的事情，也可以形容某人自私、虚伪或缺乏道德准则。在写作中，我们应该注意使用这个词时的语境，避免冒犯他人。同时，也要惕自己是否有不要脸的行为，保持良好的道德品质。