adj. 1. not modern; of or characteristic of an earlier time. Opposite of modern. [ Narrower terms: antebellum; fogyish, mossgrown, mossy, stick-in-the-mud(prenominal), stodgy old-fashioned; medieval, mediaeval, gothic; old-time, quaint; unmodernized; victorian; old-fashioned, outmoded; old-world ] Also See: old, past. [ WordNet 1.5 ]