Outdated synonyms such as antediluvian, anachronistic, and ancient. Outdated is an adjective, and its antonyms are current, modern, and fashionable. Additionally, here are 54 synonyms, related words, and verbs for outdated.
anachronistic, ancient, antediluvian, antiquated, antwacky, archaic, backward-looking, behind the times, behindhand, bygone, clunky, creaky, crusted, démodé, dated, defunct, feudal, former, fusty, horse-and-buggy, medieval, mossy, moth-eaten, mouldy, musty, not with it, obsolescent, obsolete, old, old hat, old-fangled, old-fashioned, old-fogeyish, old-time, old-world, olde worlde, out, out of date, out of fashion, out of style, out of the ark, outmoded, outworn, passé, past, prehistoric, quaint, rinky-dink, square, square-toed, superannuated, unfashionable, and vieux jeu.