/ Thesaurus / A Synonyms of age of reason Find synonyms for: Noun1. Enlightenment, Age of Reason, reform movementusage: a movement in Europe from about 1650 until 1800 that advocated the use of reason and individualism instead of tradition and established doctrine; "the Enlightenment brought about many humanitarian reforms"WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: acerbity Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language