Synonyms for Outdated:

• adj.

  •antique (adjective)
  • out dated,
  • pre historic,
  • more out of date,
  • pre-historic.
  •behind the times (adjective)
  • more back number,
  • most has been,
  • most back number,
  • more back-number,
  • most has-been,
  • out date,
  • of old school,
  • most back-number,
  • has been,
  • backnumber,
  • hasbeen,
  • most hasbeen,
  • most backnumber,
  • more hasbeen,
  • behind times,
  • more has-been,
  • more backnumber,
  • more has been.
  •dated (adjective)
  • out of style,
  • out style.
  •dowdy (adjective)
  • by gone,
  • un-seemlier,
  • blowsier,
  • un-tidiest,
  • frowzy,
  • un tidiest,
  • drab,
  • more unstylish,
  • un seemliest,
  • be draggled,
  • un seemlier,
  • un-kempter,
  • un-seemly,
  • by-gone,
  • un stylish,
  • un tidier,
  • blowsiest,
  • un-seemliest,
  • slovenly,
  • un kempter,
  • more slatternly,
  • un-stylish,
  • un seemly,
  • be-draggled,
  • untidiest,
  • most slatternly,
  • un tidy,
  • un kempt,
  • most unstylish,
  • un-kempt,
  • un-kemptest,
  • un-tidy,
  • un kemptest,
  • un-tidier.
  •hackneyed (adjective)
  • played out,
  • familiar tune,
  • run of the mill,
  • old-saw,
  • well-worn,
  • wornout,
  • played-out,
  • old chestnut,
  • old saw,
  • old-chestnut,
  • stocker,
  • old-hat,
  • timeworn.
  •late (adjective)
  • delinquent,
  • late,
  • overdue,
  • untimely,
  • tardy,
  • unpunctual,
  • belated.
  •mossy (adjective)
  • fogyish,
  • most fogyish,
  • more fogyish.
  •old-fashioned (adjective)
  • square,
  • old hat,
  • tired.
  •passe (adjective)
  • passer.
  •unfashionable (adjective)
  • in-elegant,
  • un fashionable,
  • in elegant,
  • un-fashionable.

• n.

  •
  • ageing,
  • antediluvian,
  • ancestor,
  • ancient,
  • age-old,
  • aged,
  • antiquity,
  • aging.
  •back up (noun)
  • back.
  •noncurrent (noun)
  • noncurrent.

• prep.

  •up (preposition)
  • in valid,
  • in-valid.

• Other synonyms:

  •
  • dated.
  •
  • fusty,
  • bygone,
  • outmoded,
  • antique,
  • antiquated.
  •
  • archaic,
  • vintage,
  • old-time.
  •
  • old.
  •Other relevant words:
  • overaged,
  • putrescent,
  • demode,
  • out,
  • rotten,
  • obsolescent,
  • Putrefying,
  • carious,
  • prehistorical,
  • spoiled,
  • useless,
  • decayed,
  • stale,
  • old-timey,
  • Noachian,
  • moribund,
  • Mucid,
  • retired,
  • pass,
  • black-letter,
  • old man,
  • discontinued,
  • Abjured,
  • has-beens,
  • overage,
  • musty,
  • Superseded,
  • dull,
  • Decaying,
  • rotting,
  • anachronous,
  • over-the-hill,
  • olden,
  • elderly person,
  • defunct,
  • time,
  • offbeat,
  • superannuate,
  • styleless,
  • dead,
  • out-moded,
  • elderly,
  • rancid,
  • obsolete,
  • decomposed,
  • rank,
  • anachronistic,
  • done with,
  • decomposing,
  • prehistoric,
  • neolithic,
  • medieval,
  • out of use,
  • unused,
  • abandoned,
  • not worth saving,
  • primate,
  • fossil,
  • moldy,
  • fossilized,
  • on the shelf,
  • older,
  • spoilt,
  • out of fashion,
  • kaput,
  • Mildewed,
  • Tintype,
  • deserted,
  • outworn,
  • Renounced,
  • relinquished,
  • worn-out,
  • Ogygian,
  • mouldering,
  • resigned,
  • mouldy,
  • putrid,
  • rusty,
  • rococo.

Paraphrases for Outdated:

• Equivalence

  • Adjective
    outmoded, out-of-date, antiquated, stale.
  • Proper noun, singular
    stale.

• Forward Entailment

  • Verb, past participle
    dated.

• Independent

  • Adjective
    overwhelmed, inappropriate, underdeveloped, ancient, lapsed, Deprecated, overshot, backward, expired, antique, old-growth, undeveloped, end-of-life, age-old, irrelevant, long-standing, dirty.
  • Verb, past tense
    expired.
  • Verb, past participle
    outperformed, Outgrown, outweighed, upgraded, Outlived, adapted, Outstripped, Overtaken, Transcended, bypassed, Bettered, moved, beaten, contained, topped, extended, Undergone, Resulted, grown, missed, Surpassed, breached, Offered, Stood, spent, increased, swallowed, solved, elapsed, earned, aged, Reached, Overstepped, settled, Flown, Passed, resolved, Met, observed, cleared, Bridged, crossed, Claimed, fallen, finished, gone, overwhelmed, lapsed, Deprecated, overshot, overmatched, expired, overcome.

• Other Related

  • Adjective
    old-fashioned, anachronistic, archaic, dilapidated, obsolete, dated, tattered, old, defunct, obsolescent, stereotypical, retrograde, inadequate, overdue, redundant, retrogressive, backward-looking, untimely.
  • Proper noun, singular
    obsolete.

Antonyms for Outdated:

• adj.

  • old-fashioned
    current, young, present.
  • Other antonyms:
    operative, functioning, functional, mod, workable, refurbished, alive, operating, modern, up-to-date, newfangled, employed, ultramodern, active, fresh, operational, new-fashioned, renewed, remodeled, present-day, contemporary, modernized, up-to-the-minute, recent, new, operable, busy.

• Other antonyms:

  • n.
    in style, trendy, in fashion, up to date.