The Importance of Being Earnest is a play by Oscar Wilde that may not directly explore the themes of decadence and the fin-de-siècle, but it is a prime example of Wilde's wit and satirical commentary on Victorian society. The play follows the lives of two bachelors who create fictional personas to escape their social obligations. Through clever wordplay and absurd situations, Wilde exposes the hypocrisy and superficiality of the upper class. The Importance of Being Earnest is a comedic masterpiece that showcases Wilde's talent for social critique.