If you describe someone's behaviour as affected, you disapprove of the fact that they behave in an unnatural way that is intended to impress other people. 做作的
adjective [原级]做作的,不自然的;被(外界因素)影响的,打动的
She had an affected air and a disdainful look. 她不仅做作,而且还有一副瞧不起人的样子。