Breadcrumb Home > Thesaurus > R Synonyms of retro Find synonyms for: Noun 1. retro, fashion usage: a fashion reminiscent of the past Adjective 1. ex post facto, retroactive, retro, retrospective (vs. prospective) usage: affecting things past; "retroactive tax increase"; "an ex-post-facto law"; "retro pay" WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of retro (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Chinese New Year History, Meaning, and Celebrations Current Events This Week: February 2024 Valentine's Day Valentine's Day History Mardi Gras 30 "Charlie and the Chocolate Factory" Quotes ✖ Related Content Daily Word Quiz: preternatural Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language