The Collaborative International Dictionary of English v.0.48:
Reformist \Re*form"ist\, n. [Cf. F. r['e]formiste.] A reformer. [1913 Webster]WordNet (r) 3.0 (2006):
reformist adj 1: favoring or promoting reform (often by government action) [syn: progressive, reformist, reform-minded] n 1: a disputant who advocates reform [syn: reformer, reformist, crusader, social reformer, meliorist]