| Main Entry: | |
| Part of Speech: | adjective |
| Definition: | most senior |
| Synonyms: | earlier, elder, eldest, first, first-born, former, lower, of a former period, of an earlier time, preceding, prior, senior |
| Notes: | elder is used when precedence with respect to birth order is the point; older is used when the point is seniority with respect to age |
| Antonyms: | younger |
| Main Entry: | old |
| Part of Speech: | adjective |
| Definition: | obsolete, outdated |
| Synonyms: | aboriginal, age-old, antediluvian, antiquated, antique, archaic, bygone, cast-off, crumbling, dated, decayed, demode, done, early, erstwhile, former, hackneyed*, immemorial, late, moth-eaten, of old, of yore, old-fashioned, old-time, olden, oldfangled, once, onetime, original, out-of-date, outmoded, passé, past, primeval, primitive, primordial, pristine, quondam, relic, remote, rusty, sometime, stale, superannuated, time-worn, traditional, unfashionable, unoriginal, venerable, worn-out |
| Antonyms: | contemporary, current, fresh, late, modern, new, recent, up-to-date |
| Main Entry: | old |
| Part of Speech: | adjective |
| Definition: | traditional, long-established |
| Synonyms: | age-old, constant, continuing, enduring, established, experienced, familiar, firm, hardened, inveterate, lifelong, long-lasting, long-lived, of long standing, perennial, perpetual, practiced, skilled, solid, staying, steady, time-honored, versed, veteran, vintage |
| Antonyms: | contemporary, current, modern, new |
| Main Entry: | ancient |
| Part of Speech: | adjective |
| Definition: | old, often very old |
| Synonyms: | age-old, aged, antediluvian, antiquated, antique, archaic, back number, been around, bygone, creaky, early, elderly, few miles on, fossil, hoary, lot of mileage, moth-eaten, obsolete, old goat, old-fashioned, older, oldie, out-of-date, outmoded, primal, primeval, primordial, relic, remote, rusty, superannuated, timeworn, venerable, worse for wear |
| Antonyms: | modern, new, young |
| Main Entry: | elder |
| Part of Speech: | adjective |
| Definition: | born earlier |
| Synonyms: | ancient, earlier, first-born, more mature, older, senior |
| Notes: | elder is used when precedence with respect to birth order is the point; older is used when the point is seniority with respect to age |
| Antonyms: | last-born, younger, youngest |
| Main Entry: | ancestral |
| Part of Speech: | adjective |
| Definition: | related to previous family or family trait |
| Synonyms: | affiliated, born with, congenital, consanguine, consanguineous, familial, genealogical, in the family, inborn, inbred, inherited, innate, lineal, maternal, old, past, paternal, running in the family, totemic, tribal |
| Main Entry: | antediluvian |
| Part of Speech: | adjective |
| Definition: | out-of-date; prehistoric |
| Synonyms: | age-old, ancient, antiquated, antique, archaic, hoary, obsolete, old, old-fashioned, passé, primeval, primitive, primordial, timeworn, venerable |
| Antonyms: | modern, new, up-to-date, young |
| Main Entry: | antiquated |
| Part of Speech: | adjective |
| Definition: | obsolete |
| Synonyms: | aged, ancient, antediluvian, antique, archaic, dated, elderly, fusty, hoary, moldy, obsolescent, old, old hat, old-fangled, old-fashioned, out-of-date, outmoded, outworn, superannuated |
| Antonyms: | forward-looking, modern, new, recent |
| Main Entry: | decrepit |
| Part of Speech: | adjective |
| Definition: | deteriorated, debilitated, especially as a result of age |
| Synonyms: | aged, anile, antiquated, battered, bedraggled, broken-down, creaky, crippled, dilapidated, doddering, effete, feeble, flimsy, fragile, frail, haggard, incapacitated, infirm, insubstantial, old, quavering, ramshackle, rickety, run-down, seedy, senile, shabby, shaking, superannuated, tacky, threadbare, tired, tottering, tumble-down, unsound, used, wasted, weak, weakly, weather-beaten, worn, worn-out |
| Antonyms: | fit, healthy, young |