existential

As a noun existance

is .

As an adjective existential is

of, or relating to existence.

As an adjective existential

is of, or relating to existence.

As a noun ontology is

(uncountable|philosophy) the branch of metaphysics that addresses the nature or essential characteristics of being and of things that exist; the study of being qua being.

As adjectives the difference between existential and philosophical

is that existential is of, or relating to existence while philosophical is of, or pertaining to, philosophy.

As a noun metaphysics

is the branch of philosophy which studies fundamental principles intended to describe or explain all that is, and which are not themselves explained by anything more fundamental; the study of first principles; the study of being insofar as it is being (ens in quantum ens).

As an adjective existential is

of, or relating to existence.

In philosophy|lang=en terms the difference between existential and nihilism

is that existential is (philosophy) of, or relating to existentialism while nihilism is (philosophy) a philosophical doctrine grounded on the negation of one or more meaningful aspects of life.

As an adjective existential

is of, or relating to existence.

As a noun nihilism is

(philosophy) a philosophical doctrine grounded on the negation of one or more meaningful aspects of life.

Eternal is a related term of existential.

In philosophy|lang=en terms the difference between eternal and existential

is that eternal is (philosophy) existing outside time; as opposed to sempiternal, existing within time but everlastingly while existential is (philosophy) of, or relating to existentialism.

As adjectives the difference between eternal and existential

is that eternal is lasting forever; unending while existential is of, or relating to existence.

As adjectives the difference between existential and esoteric

is that existential is of, or relating to existence while esoteric is intended for or likely to be understood by only a small number of people with a specialized knowledge or interest, or an enlightened inner circle.

Basic is a related term of existential.

As adjectives the difference between basic and existential

is that basic is basic while existential is of, or relating to existence.

As adjectives the difference between essential and existential

is that essential is necessary while existential is of, or relating to existence.

As a noun essential

is a necessary ingredient.

As a verb exists

is (exist).

As an adjective existential is

of, or relating to existence.