"existential" in the adjective sense
1. experiential, existential
derived from experience or the experience of existence
"the rich experiential content of the teachings of the older philosophers"- Benjamin Farrington
"formal logicians are not concerned with existential matters"- John Dewey
2. existential
of or as conceived by existentialism
"an existential moment of choice"
3. existential
relating to or dealing with existence (especially with human existence)
Source: WordNet® (An amazing lexical database of English)
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