Existential

a.	1.	Having existence.
	2.	of or pertaining to, or having the character of, existentialism.
	3.	(Logic) specifying actual existence, rather than only possibility; as, the existential operator. Existentially as well as essentially intelligent. - Colerige.

Adj.	1.	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 Synonyms: experiential
	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)

Cyrenaic, Eleatic, Epicurean, Megarian, Stoic, animist, animistic, atomistic, cosmotheistic, eclectic, empirical, eudaemonistic, hedonic, hedonist, hedonistic, humanist, humanistic, idealistic, instrumentalist, materialistic, mechanistic, metaphysical, monistic, naturalistic, nominalist, panlogistical, pantheistic, positivist, positivistic, pragmatic, pragmatist, rationalistic, realist, realistic, scholastic, sensationalistic, syncretistic, theistic, transcendentalist, transcendentalistic, utilitarian, vitalistic, voluntarist, voluntaristic