Reformer

1. (n.) One who effects a change; one who labors for, or urges, reform; as, a reformer of manners, or of abuses.

2. (n.) One of those who commenced the reformation of religion in the sixteenth century, as Luther, Melanchthon, Zwingli, and Calvin.

Thesaurus Entries

Fabian, Tammany man, extremist, machine politician, meliorist, old campaigner, party boss, party chieftain, party leader, pol, political hack, political leader, politician, professional politician, progressionist, progressist, progressive, progressivist, radical, reform politician, reformist, revisionist, revolutionary, utopian, utopist, war-horse, wheelhorse