Definition of existential adjective from the Oxford Advanced Learner's Dictionary

     

    existential

     adjective
    adjective
    BrE BrE//ˌeɡzɪˈstenʃəl//
     
    ; NAmE NAmE//ˌeɡzɪˈstenʃəl//
     
    [only before noun]
     
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  1. 1(formal) connected with human existence
  2. 2(philosophy) connected with the theory of existentialism
  3. Word Origin late 17th cent.: from late Latin existentialis, from existentia, from Latin exsistere ‘come into being’, from ex- ‘out’ + sistere ‘take a stand’.
See the Oxford Advanced American Dictionary entry: existential