Synonyms and Antonyms of archaic
- the company needs to update its archaic computer system
antiquated, dated, démodé, demoded, fossilized, kaput (also kaputt), medieval (also mediaeval), moribund, mossy, moth-eaten, neolithic, Noachian, obsolete, out-of-date, outdated, outmoded, outworn, passé, prehistoric (also prehistorical), rusty, Stone Age, superannuated
aging (or ageing), obsolescent
discarded, disused, inoperable, unusable, unworkable, useless
dead, defunct, expired, extinct, vanished
dormant, fallow, free, idle, inactive, inert, inoperative, latent
ancient, antediluvian, antique, dateless, fusty, musty, old
oldfangled, old-fashioned, old-time, retro, vintage
aged, age-old, hoary, venerable
atavistic, bygone, erstwhile, former, historic, historical, late, old-world, past