4 sentences

1. 认贼作父是极其无耻的行为。

   rèn zéi zuò fù shì jí​qí wú​chǐ de xíng​wéi.

   Treating a villain as one's father is an utterly shameless act.

   Source: Dong Chinese Dictionary

2. 我对你的厚颜无耻感到惊讶。

   wǒ duì nǐ de hòu​yán wú​chǐ gǎn​dào jīng​yà.

   I am amazed at your audacity.

   Source: Tatoeba

3. 那个无耻之徒竟然在光天化日之下撒谎。

   nà gè wú​chǐ zhī tú jìng​rán zài guāng​tiān​huà​rì zhī​xià sā​huǎng.

   That shameless scoundrel had the audacity to lie in broad daylight.

   Source: Dong Chinese Dictionary

4. 他竟然能说出这种无耻的谎言，真是令人震惊。

   tā jìng​rán néng shuō​chū zhè zhǒng wú​chǐ de huǎng​yán, zhēn shì lìng rén zhèn​jīng.

   It is truly shocking that he could tell such a shameless lie.

   Source: Dong Chinese Dictionary