Definition of actionism in English:

actionism

noun

  • 1Belief in or advocacy of taking action; activism.

  • 2Art
    Art. Also with capital initial. An artistic movement emphasizing the physical act or process of creation over the finished work; specifically (in later use) = Viennese Actionism.

Origin

Late 19th century (in an earlier sense). From action + -ism.

Pronunciation:

actionism

/ˈakʃ(ə)nɪz(ə)m//ˈakʃənɪz(ə)m/