absurdism
US /əbˈsɜːrdɪzəm/
UK /əbˈsɜːrdɪzəm/

1.
the philosophical theory that life is without objective meaning, purpose, or intrinsic value.
:
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Camus's writings often explore the concept of absurdism.
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The play reflected the themes of absurdism, highlighting the meaninglessness of human existence.