Existential vs Psychological - What's the difference?

As adjectives the difference between existential and psychological

is that existential is of, or relating to existence while psychological is of or pertaining to psychology.

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Of, or relating to existence.

Based on experience; empirical.

(philosophy) Of, or relating to existentialism.

(linguistics) That part of a sentence indicating existence e.g. "there is".

* non-phenomenal * noumenal * non-metaphysical

* existentialism * existentialist * existential crisis * existential quantifier

(-)

Of or pertaining to psychology.

I'm concerned about their psychological well-being.

The film was a dark psychological thriller.

Without an objective, or reasonably logical foundation.

Prices seem to have stopped rising, having hit the psychological ceiling of just under 100 dollars.

* psychological warfare * psychologically * psychomological