English Etymology From pro- + activism. Noun proactivism (uncountable) English Wikipedia has an article on:proactivismWikipedia English Wikipedia has an article on:ProactivityWikipedia Support for activism. 2015 September 7, Holland Cotter, “Exhibitions Where Moral Force Trumps Market Forces”, in New York Times:So was the cellist Charlotte Moorman, muse to Nam June Paik and proactivism champion of all things fringe.Remove adsWikiwand - on Seamless Wikipedia browsing. On steroids.Remove ads