EXISTENTIALISM
existentialism, existential philosophy, existentialist philosophy
(noun) (philosophy) a 20th-century philosophical movement chiefly in Europe; assumes that people are entirely free and thus responsible for what they make of themselves
Source: WordNet® 3.1
Etymology
Noun
existentialism (countable and uncountable, plural existentialisms)
(philosophy, not countable) A twentieth-century philosophical movement emphasizing the uniqueness of each human existence in freely making its self-defining choices.
(philosophy, countable) The philosophical views of a particular thinker associated with the existentialist movement.
Antonyms
• noumenalism
Source: Wiktionary