Difference between Bad-mannered and Ill-mannered

What is the difference between Bad-mannered and Ill-mannered?

Bad-mannered as an adjective is of or pertaining to having bad manners; impolite. while Ill-mannered as an adjective is of or pertaining to having bad manners; impolite.

We hope you now know whether to use Bad-mannered or Ill-mannered in your sentence.