existentialism
This work is an existentialistic interpretation of the nature of human existence.
He had an existentialistic attitude towards religion.
It may be possible to argue that all philosophies are in a sense existentialistic.
Existentialistic philosophy emphasizes the importance of individual freedom and responsibility.

SMART Vocabulary: related words and phrases

Philosophy
aesthete
aesthetic
aesthetically
anthropocentric
anthropocentrism
epistemologically
epistemology
essentialism
existential
existentialism
non-deterministic
non-philosophical
notional
ontological
ontologically
spatiotemporally
superorganic
supersensible
syllogism
syllogistic