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English definition of “existentialism”

existentialism

noun [U]     /ˌeɡ.zɪˈsten.ʃəl.ɪ.zəm/ specialized
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 characterPhilosophy existential     /əl/ adjective (also existentialist) an existential/existentialist argument/philosopherPhilosophy existentialist     /-ɪst/ noun [C]
(Definition of existentialism noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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