self-existent

adjective

self-ex·​is·​tent ˌself-ig-ˈzi-stənt 

: existing of or by oneself or itself independently of any other being or cause : not caused to exist by someone or something else

a self-existent universe

"… the Judeo-Christian concept of God, which has God as uniquely self-existent."

—William Lane Craig

self-existence

ˌself-ig-ˈzi-stən(t)s 

noun

plural self-existences

[Jean Paul] Sartre … states that the created entities cannot enjoy autonomy or self-existence because they must depend upon a creator.

—Paul Clavier

Word History

First Known Use

1663, in the meaning defined above