The repetition of the word "absurd" in The Importance of Being Earnest serves to underscore the satirical nature of the play. By constantly highlighting the absurdity of the characters' actions and the society they inhabit, Oscar Wilde mocks the hypocritical and shallow nature of upper-class Victorian society. This repetition also emphasizes the contrasting values of the play's protagonist, who is trying to escape the absurdity of his social world by adopting a false identity. Overall, the repetition of "absurd" enhances the comedic and critical tone of the play.
