Idiom "outside the bounds of morality, uacceptable"

[Kalma]

Hi everyone!

I am interested in learing some idioms, and a friend bet me with this puzzle and I really have no idea, the meaning is "outside the bounds of morality, uacceptable" and the clue is "no tan".

Can you help me, please?

Many thanks in advance!

 

[jutfrank]

beyond the pale

 

[emsr2d2]

Welcome to the forum. :hi:

I'm sure you will tell your friend that you didn't get the answer on your own!