Synonyms for In valid:

• adj.

  •bedridden (adjective)
  • laid up,
  • invalid,
  • flat on one's back,
  • prostrate,
  • incapacitated.
  •defunct (adjective)
  • gone,
  • down the drain,
  • cold,
  • bygone,
  • nonexistent,
  • late,
  • lifeless,
  • exanimate,
  • obsolete,
  • lost,
  • kaput,
  • expired,
  • deceased,
  • departed,
  • vanished,
  • done for,
  • out of commission,
  • inanimate,
  • dead,
  • had it,
  • asleep.
  •erroneous (adjective)
  • inexact,
  • way off,
  • awry,
  • mistaken,
  • all wet,
  • defective,
  • spurious,
  • misguided,
  • faulty,
  • all off,
  • off,
  • amiss,
  • unfounded,
  • askew,
  • wrong number,
  • inaccurate,
  • specious,
  • flawed.
  •fallacious (adjective)
  • fraudulent,
  • sophistical,
  • delusive,
  • Deluding,
  • misleading,
  • Deceiving,
  • fictitious,
  • fishy,
  • delusory,
  • deceptive,
  • erroneous,
  • incorrect,
  • unreal,
  • ungrounded,
  • illusory,
  • beguiling,
  • phony.
  •false (adjective)
  • fanciful,
  • Misrepresentative,
  • deceitful,
  • trumped up,
  • distorted,
  • off the mark,
  • cooked-up,
  • counterfactual,
  • mendacious,
  • illusive,
  • imaginary,
  • apocryphal,
  • sham,
  • dishonest,
  • contrary to fact,
  • bogus,
  • lying,
  • ersatz,
  • Concocted,
  • improper,
  • fake,
  • untruthful,
  • casuistic.
  •faulty (adjective)
  • inadequate,
  • marred,
  • debased,
  • blemished,
  • deficient,
  • warped,
  • broken,
  • rank,
  • lemon,
  • cracked,
  • unfit,
  • blamable,
  • adulterated,
  • maimed,
  • insufficient,
  • injured,
  • malformed,
  • unreliable,
  • out of order,
  • impaired,
  • malfunctioning,
  • unretentive,
  • imprecise,
  • damaged,
  • fallible,
  • imperfect,
  • incomplete,
  • botched,
  • tainted,
  • leaky,
  • lame.
  •helpless (adjective)
  • inexpert,
  • friendless,
  • exposed,
  • forlorn,
  • paralyzed,
  • dependent,
  • inefficient,
  • up creek without paddle,
  • unprotected,
  • impotent,
  • Handcuffed,
  • destitute,
  • powerless,
  • with hands tied,
  • defenseless,
  • abandoned,
  • tapped,
  • forsaken,
  • unable,
  • pinned,
  • basket-case,
  • over a barrel,
  • shiftless,
  • tapped out.
  •illegitimate (adjective)
  • supposititious,
  • unauthorized,
  • contraband,
  • wicked,
  • illegal,
  • illicit,
  • unconstitutional,
  • unlawful,
  • misbegotten,
  • unsanctioned.
  •illogical (adjective)
  • meaningless,
  • inconsequent,
  • groundless,
  • inconclusive,
  • untenable,
  • unproved,
  • unsubstantial,
  • nutty,
  • wacky,
  • preposterous,
  • cockeyed,
  • not following,
  • irrelevant,
  • self-contradictory,
  • without basis,
  • without foundation,
  • incongruous,
  • off the wall,
  • senseless,
  • unconnected,
  • implausible,
  • inconsistent,
  • screwy,
  • fatuous,
  • hollow,
  • absurd.
  •invalid (adjective)
  • mad,
  • below par,
  • untrue,
  • laid low,
  • disabled,
  • sick,
  • not working,
  • on the sick list,
  • weak,
  • Unreasoned,
  • down,
  • unscientific,
  • not binding,
  • feeble,
  • illogical,
  • inoperative,
  • infirm,
  • unsound,
  • ailing,
  • reasonless,
  • void,
  • wrong,
  • bedridden,
  • null and void,
  • false,
  • null,
  • ill,
  • debilitated,
  • bad,
  • out of action,
  • sophistic,
  • peaked,
  • fallacious,
  • run-down,
  • frail,
  • poorly,
  • nugatory,
  • baseless,
  • unreasonable,
  • ill-founded,
  • irrational.
  •irrational (adjective)
  • incoherent,
  • loony,
  • silly,
  • injudicious,
  • raving,
  • off-the-wall,
  • insane,
  • distraught,
  • mindless,
  • kooky,
  • wild,
  • nonsensical,
  • brainless,
  • unreasoning,
  • foolish,
  • flaky,
  • unthinking,
  • freaky,
  • aberrant,
  • stupid,
  • disjointed,
  • delirious,
  • unwise,
  • cockamamie,
  • disconnected,
  • demented,
  • crazy,
  • unstable,
  • ridiculous.
  •mad (adjective)
  • lunatic,
  • foolhardy,
  • cuckoo,
  • bananas,
  • fantastic,
  • frantic,
  • frenetic,
  • distracted,
  • unsafe,
  • mental,
  • out of one's mind,
  • crazed,
  • of unsound mind,
  • non compos mentis,
  • daft,
  • imprudent,
  • unhinged,
  • rabid,
  • frenzied,
  • deranged,
  • psychotic,
  • unbalanced,
  • off one's rocker,
  • batty,
  • ludicrous.
  •nugatory (adjective)
  • trifling,
  • idle,
  • trivial.
  •null (adjective)
  • inefficacious,
  • unavailing,
  • vain,
  • nothing,
  • barren,
  • negative,
  • absent,
  • ineffective,
  • characterless,
  • worthless,
  • useless.
  •sick (adjective)
  • queasy,
  • lousy,
  • suffering,
  • tottering,
  • confined,
  • infected,
  • funny,
  • feverish,
  • under the weather,
  • indisposed,
  • rocky,
  • rotten,
  • diseased,
  • rickety,
  • Qualmish,
  • not so hot,
  • in poor health,
  • in a bad way,
  • under medication,
  • green,
  • hospitalized,
  • disordered,
  • sick as a dog,
  • unhealthy,
  • unwell,
  • broken down,
  • mean,
  • declining,
  • nauseated,
  • laid-up,
  • delicate,
  • run down,
  • wobbly.
  •trumped up (adjective)
  • framed,
  • cooked up,
  • Falsified,
  • Devised,
  • invented,
  • fabricated,
  • made up.
  •unhealthy (adjective)
  • out of shape,
  • in a decline,
  • shaky,
  • in ill health,
  • dragging,
  • sickly.
  •unreasonable (adjective)
  • quirky,
  • arbitrary,
  • loose,
  • opinionated,
  • contradictory,
  • headstrong,
  • erratic,
  • thoughtless,
  • vacant,
  • inconsequential,
  • far-fetched,
  • full of hot air,
  • capricious,
  • biased.
  •unsound (adjective)
  • insecure,
  • decrepit,
  • insubstantial,
  • not solid,
  • dangerous,
  • fragile,
  • unbacked,
  • unsteady.
  •unwell (adjective)
  • not feeling well.
  •void (adjective)
  • Avoided,
  • forceless,
  • unratified,
  • unsuccessful,
  • sterile,
  • unenforceable,
  • unconfirmed,
  • Voided,
  • negated,
  • unfruitful,
  • set aside,
  • not viable,
  • ineffectual,
  • fruitless.
  •weak (adjective)
  • raw,
  • flimsy,
  • inconceivable,
  • slim,
  • wanting,
  • flabby,
  • improbable,
  • unconvincing,
  • small,
  • unbelievable,
  • thick,
  • unqualified,
  • incompetent,
  • shallow,
  • unprepared,
  • poor,
  • substandard,
  • thin,
  • spineless,
  • unsure,
  • inept,
  • pathetic,
  • incredible,
  • limited,
  • immature,
  • lacking,
  • unsatisfactory,
  • untrained,
  • handicapped,
  • slight.

• n.

  •invalid (noun)
  • patient,
  • sufferer,
  • convalescent,
  • shut-in,
  • consumptive,
  • incurable.
  •patient (noun)
  • emergency,
  • victim,
  • sick person,
  • outpatient,
  • inmate,
  • case,
  • subject.

• prep.

  •up (preposition)
  • finished,
  • elapsed,
  • lapsed,
  • terminated,
  • done,
  • ended,
  • outdated,
  • run out.

Antonyms for In valid:

• adj.

  • defunct
    functioning, existent, live, working, alive, existing, operating, operative.
  • erroneous
    correct, substantiated, precise, just, genuine, accurate, real.
  • fallacious
    truthful.
  • false
    proven, actual, moral, open, fair, frank, faithful, reliable, sincere, known, straight, trustworthy, factual, authentic.
  • faulty
    faultless, fixed, adequate, unbroken, ample, complete, flawless, perfect, enough, sufficient.
  • helpless
    fit, powerful, secure, potent, capable, independent, able, enterprising, competent, skilled, resourceful.
  • illegitimate
    lawful, legal, authorized, warranted, blessed, ethical, legitimate, proper, justifiable, sanctioned.
  • illogical
    rational, meaningful, wise.
  • invalid
    sensible, valid, healthy, worthy, strong, worthwhile, reasonable, right, honest, happy, logical, stable, well, ok, sound, good, true.
  • irrational
    responsible, realistic, sane, thoughtful, balanced, reflective, serious, smart.
  • mad
    disenchanted, collected, Cheered, unenthusiastic, calm.
  • null
    full, profitable, effectual, valuable, effective, filled.
  • sick
    content, undiseased, pleased, nice, gentle, clean, satisfied.
  • unreasonable
    consistent, cheap, pragmatic, intelligent, plain, economical, practical, low, circumspect.
  • unsound
    safe, steady, firm, sure, certain, protected.
  • void
    occupied.
  • weak
    brave, noisy, guarded, confident, concentrated, bold, loud.

• n.

  • patient
    doctor.

• prep.

  • up
    current, continuing, down.