Noun

The state of being, existing, or occurring; beinghood.

*

, title=(The Celebrity), chapter=1 , passage=However, with the dainty volume my quondam friend sprang into fame. At the same time he cast off the chrysalis' of a commonplace ' existence .}}

* {{quote-magazine, year=2012, month=March-April, author=(Jeremy Bernstein)

, volume=100, issue=2, page=146, magazine=(American Scientist) , title= A Palette of Particles , passage=The physics of elementary particles in the 20th century was distinguished by the observation of particles whose existence had been predicted by theorists sometimes decades earlier.}}

Empirical reality; the substance of the physical universe. (Dictionary of Philosophy; 1968)

Noun

(en noun)

(philosophy, not countable) A twentieth-century philosophical movement emphasizing the uniqueness of each human existence in freely making its self-defining choices.

The heyday of existentialism occurred in the mid-twentieth century.

(philosophy, countable) The philosophical views of a particular thinker associated with the existentialist movement.

Sartre's existentialism''' is atheistic, but the '''existentialism of Marcel is distinctly Christian.

* 1965 , Mikel Dufrenne, "Existentialism and Existentialisms," Philosophy and Phenomenological Research , vol 26 no 1 (Sep), p. 51.

Instead of Existentialism', we should speak of ' Existentialisms .