man ‧ nered /ˈmænəd $ -ərd/ BrE AmE adjective
1 . well-mannered/bad-mannered etc polite, impolite etc in the way you behave in social situations:
He is the most well-mannered, well-behaved boy I know.
2 . behaviour, speech, or writing that is mannered is not natural and is intended to make people admire you – used in order to show disapproval:
Hickstone gave a very mannered performance in the lead role.