comedy of manners
US /ˈkɑː.mə.di əv ˈmæn.ərz/
UK /ˈkɑː.mə.di əv ˈmæn.ərz/

1.
a comedy that satirizes the manners and affectations of a social class, often represented by stock characters and concerned with the question of how to behave in polite society
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Oscar Wilde's 'The Importance of Being Earnest' is a classic example of a comedy of manners.
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Many Restoration plays are considered comedies of manners due to their focus on social conventions.