This article introduces Pinter as an early practitioner of the Theater of the Absurd as well as an existentialist. In his plays The Dumb Waiter, The Room and Birthday Party absurd is presented in its different aspects and faced by different characters. Sometimes this absurdity is funny but the dramatist's aim is to get into reality. Another aspect of Pinter's plays is existentialism. His Pinteresque characters show his multi-dimensional way of looking at life.