A trick to using malapropism is to ensure that the two words (the original and the substitute) sound similar enough for the reader to catch onto the intended switch and find humor in the result.
Positivism is a philosophical theory stating that positive knowledge is based on natural phenomena and their properties and relations. Thus, information derived from sensory experience, interpreted through reason and logic, forms the exclusive source of all authoritative knowledge.
Noun. 1. progressivism-the political orientation of those who favor progress toward better conditions in government and society. ideology, political orientation, political theory-an orientation that characterizes the thinking of a group or nation. 1  Facebook. 2  Twitter.