situationism

Noun

 * 1)  A school of thought which holds that personality is more influenced by external factors than by internal traits or motivations.
 * 2)  A mid-20th-century offshoot of Marxism, influenced by avant-garde art movements.

Usage notes
Members of the political movement avoided the term situationism and referred to it by the name of the founding organization, (SI).

Translations

 * Finnish: situationismi
 * German: Situationismus, Personismus
 * Italian: situazionismo