existentialism
noun [ U ] social science specialized uk/ˌeɡ.zɪˈsten.ʃəl.ɪ.zəm/ us/ˌeɡ.zɪˈsten.ʃəl.ɪ.zəm/
存在主义（让•保罗•萨特在20世纪40年代创建的理论）
a system of ideas made famous by Jean Paul Sartre in the 1940s in which the world has no meaning and each person is alone and completely responsible for their own actions, by which they make their own character