existential

形容词 existential:

1. derived from experience or the experience of existence- John Dewey
   同义词：experiential
2. of or as conceived by existentialism
3. relating to or dealing with existence (especially with human existence)

ex.is.ten.tial

adj.（形容词）
Of, relating to, or dealing with existence.
存在的：关于或涉及存在的
Based on experience; empirical.
根据经验的；全凭观察和实验的
Of or as conceived by existentialism or existentialists:
经验主义的：由经验主义或经验主义者所构想的：
例句：
an existential moment of choice.
存在判断的选择时刻

【引伸】
ex.isten.tially
adv.（副词）