dadaism UK /ˈdɑːdɑːɹɪzəm/US /ˈdɑːdɑːɪzəm/ noun1 •The cultural movement of Dada.What is Dadaism? Its official organ, published at Zurich, tells us, mystifyingly at first, that “Dada” doesn't mean anything. — 1919 formsDadaisms · dadaisms