left-ˈwingismn. left-wing politics or ideology; support for these; cf. left-wingeryn. at left wingern. Derivatives.
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1923 G. D. H. ColeWorkshop Organization 17 The rise of ‘left-wingism’ inside the Trade Union movement.
1963 Guardian 10 May 22/7 Vague Left-Wingism.
1997 S. ScatesW. G. Magnuson & Shaping Twentieth-cent. Amer. xviii. 171 In the wake of Joe McCarthy's censure, charges of left-wingism may have lost their primal appeal.