One of the crucial debates on the meaning of life is the question of absurdity. Is life of human beings has a unifying, valuable, and purposeful ground? one of the thinkers who present a negative answer to the question and advocates absurdity is Thomas Nagel. He offers two accounts of absurdity: "Human and the world" which refers to the unfulfilling gap between the desired world and the existing world and the second account "Human and herself" which relies on the lack of reasonability. He argues that reasonability is only reasonable from a human point of view and there are many doubts about it outside of that. Moreover, when reasonability is doubted, then the values that come from it are also unacceptable. Hence, he arrives at Absurdism. In a critical study of his view, I believe that several criticisms can face his view: "validity of rationality", "the seriousness of life", "the intuitional evaluation of a meaningful life", and "the transcendental ability of human beings". Based on the criticisms, Nagel's arguments cannot support the idea of the absurdity of life. This study is conducted by using library material and the descriptive-analytical method.