ex ‧ is ‧ ten ‧ tial /ˌeɡzɪˈstenʃ ə l◂/ BrE AmE adjective [only before noun] formal
[ Word Family: noun : ↑ existence ≠ ↑ non-existence , ↑ existent , ↑ existentialism , ↑ existentialist , ↑ coexistence ; adjective : ↑ existent ≠ ↑ nonexistent , ↑ existing , ↑ pre-existing , ↑ existential , ↑ existentialist ; verb : ↑ exist , ↑ coexist ]
relating to the existence of humans or to existentialism