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: WordNetCarnap made a detailed analysis of Heidegger's statement, "Nothing nihilates,” in order to show that it is purely verbal, devoid of empirical meaning. (Incidentally, this is the only sentence from existentialist philosophy the majority of contemporary positivists appear familiar with.) Leszek Kołakowski