mannered
[adjective]
Synonyms: affected, artificial, pretentious, stilted

[TahlilGaran] English Synonym Dictionary ▲

man‧nered /ˈmænəd $ -ərd/ 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.

[TahlilGaran] Dictionary of Contemporary English ▲