Based on experience; empirical.
Of or as conceived by existentialism or existentialists: an existential moment of choice.
Linguistics. Of or relating to a construction or part of a construction that indicates existence, as the words there is in the sentence There is a cat on the mat.
adj 1: 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 syn: experiential 2: of or as conceived by existentialism; "an existential moment of choice" 3: relating to or dealing with existence (especially with human existence)