Synonyms for In substantial:

• adj.

  •bodiless (adjective)
  • discorporate,
  • unbodied.
  •decrepit (adjective)
  • crippled,
  • tacky,
  • shabby,
  • tottering,
  • haggard,
  • run-down,
  • weather-beaten,
  • threadbare,
  • doddering,
  • shaking,
  • old,
  • dilapidated,
  • antiquated,
  • aged,
  • ramshackle,
  • wasted,
  • seedy,
  • effete,
  • incapacitated,
  • creaky,
  • battered,
  • bedraggled,
  • insubstantial,
  • weak,
  • worn,
  • superannuated,
  • used,
  • anile,
  • senile,
  • worn-out,
  • rickety,
  • quavering,
  • tired,
  • broken-down,
  • tumble-down,
  • weakly.
  •elusive (adjective)
  • evanescent,
  • greasy,
  • shifty,
  • cagey,
  • fraudulent,
  • unspecific,
  • indefinable,
  • incomprehensible,
  • tricky,
  • transitory,
  • baffling,
  • fugacious,
  • puzzling,
  • occult,
  • fallacious,
  • stonewalling,
  • deceitful,
  • fleeting,
  • equivocal,
  • slippery,
  • deceptive,
  • difficult to catch,
  • volatile,
  • transient,
  • subtle,
  • phantom,
  • fugitive,
  • misleading,
  • shy,
  • ambiguous,
  • Elusory.
  •ethereal (adjective)
  • refined,
  • unworldly,
  • spiritual,
  • filmy,
  • impalpable,
  • rarefied,
  • gossamer,
  • celestial,
  • fairy,
  • divine,
  • vaporous,
  • fine,
  • ghostly,
  • light,
  • Vapory,
  • unearthly,
  • dainty,
  • exquisite,
  • empyreal,
  • supernal,
  • sublime,
  • gaseous,
  • empyrean.
  •feeble (adjective)
  • delicate,
  • unconvincing,
  • out of gas,
  • low,
  • inadequate,
  • enfeebled,
  • emasculated,
  • tame,
  • lame,
  • indecisive,
  • flabby,
  • sapless,
  • exhausted,
  • impotent,
  • flat,
  • faint,
  • paltry,
  • ailing,
  • debilitated,
  • insufficient,
  • sickly,
  • Strengthless,
  • inefficient,
  • ineffectual,
  • helpless,
  • enervated,
  • failing,
  • gentle,
  • dopey,
  • vitiated,
  • weakened,
  • wimpy,
  • zero,
  • etiolated,
  • languid,
  • chicken,
  • incompetent,
  • powerless,
  • woozy.
  •filmy (adjective)
  • diaphanous,
  • fine-grained,
  • cobwebby,
  • see-through,
  • chiffon,
  • wispy,
  • transparent,
  • gauzy,
  • tiffany,
  • sheer,
  • floaty.
  •flimsy (adjective)
  • meager,
  • cut-rate,
  • wobbly,
  • rinkydink,
  • shallow,
  • slapdash,
  • house of cards,
  • shaky,
  • sleazy,
  • defective,
  • superficial,
  • papery.
  •fragile (adjective)
  • crisp,
  • frangible,
  • shatterable,
  • friable,
  • shivery,
  • fracturable,
  • crumbly,
  • brittle.
  •frail (adjective)
  • sad,
  • fishy,
  • tender,
  • vulnerable,
  • Shattery,
  • wishy-washy,
  • slim.
  •gauzy (adjective)
  • pellucid,
  • translucent,
  • lucid.
  •ghostly (adjective)
  • ghastly,
  • ghostlike,
  • apparitional,
  • phantasmal,
  • weird,
  • scary,
  • wraithy,
  • supernatural,
  • spectral,
  • holy,
  • cadaverous,
  • eidolic,
  • corpselike,
  • shadowy,
  • deathlike,
  • uncanny,
  • wraithlike,
  • vampiric,
  • wan,
  • pale,
  • haunted,
  • eerie.
  •imagined (adjective)
  • thought up.
  •impalpable (adjective)
  • imprecise,
  • unperceivable,
  • unobservable,
  • vague,
  • indistinct,
  • insensible,
  • imperceptible,
  • indiscernible,
  • nebulous,
  • disembodied,
  • unapparent,
  • inappreciable.
  •inadequate (adjective)
  • depleted,
  • too little,
  • not enough,
  • skimpy,
  • minus,
  • imperfect,
  • faulty,
  • stunted,
  • short,
  • niggardly,
  • inconsiderable,
  • sparse,
  • incapable,
  • lousy,
  • junk,
  • incomplete,
  • small,
  • bare,
  • deficient,
  • scarce,
  • sterile,
  • found wanting,
  • scanty,
  • parsimonious,
  • lemon,
  • glitch,
  • incommensurate,
  • lacking,
  • dry,
  • unequal,
  • unproductive,
  • unqualified,
  • Stinted,
  • inapt,
  • sketchy,
  • barren,
  • miserly,
  • spare,
  • bush-league.
  •insecure (adjective)
  • wavering,
  • hazardous,
  • unsafe,
  • unguarded,
  • unshielded,
  • rootless,
  • unstable,
  • unprotected,
  • Fluctuant,
  • unreliable,
  • immature,
  • rocky,
  • open to attack,
  • vacillating,
  • perilous,
  • loose,
  • unsteady,
  • defenseless,
  • exposed.
  •insubstantial (adjective)
  • fanciful,
  • idle,
  • metaphysical,
  • chimerical,
  • fly-by-night,
  • unreal,
  • immaterial,
  • illusory,
  • thin,
  • tenuous,
  • airy,
  • fragile,
  • intangible,
  • incorporeal,
  • feeble,
  • puny,
  • decrepit,
  • flimsy,
  • false,
  • poor,
  • ephemeral,
  • too little too late,
  • unsound,
  • slight,
  • slender,
  • infirm,
  • frail,
  • imponderable,
  • petty,
  • aerial,
  • unsubstantial.
  •jerry-built (adjective)
  • junky,
  • slipshod,
  • jerry-rigged,
  • makeshift,
  • cheap,
  • shoddy.
  •light (adjective)
  • unheavy,
  • downy,
  • atmospheric,
  • lithe,
  • fluffy,
  • inconsequential,
  • sandy,
  • tissuelike,
  • featherweight,
  • Floatable,
  • graceful,
  • nimble,
  • porous,
  • spongy,
  • feathery,
  • Imponderous,
  • effervescent,
  • floating,
  • trivial,
  • little,
  • lightweight,
  • light-footed,
  • weightless,
  • agile,
  • portable,
  • sprightly,
  • frothy,
  • buoyant,
  • Gossamery,
  • trifling,
  • sylphlike,
  • easy,
  • ethereal.
  •meager (adjective)
  • mere,
  • unfruitful,
  • unfinished,
  • wanting,
  • scant,
  • scrimp,
  • infertile,
  • miserable,
  • scrimpy,
  • exiguous,
  • skimp,
  • minimum.
  •meaningless (adjective)
  • fustian,
  • insignificant,
  • unimportant,
  • blank,
  • hollow,
  • Purportless,
  • nothing,
  • nonsensical,
  • worthless,
  • vapid,
  • aimless,
  • hot air,
  • senseless,
  • pointless,
  • futile,
  • vacant,
  • doublespeak,
  • good-for-nothing,
  • feckless,
  • useless,
  • empty,
  • double-talk,
  • Unpurposed,
  • valueless,
  • vain,
  • purposeless,
  • inane,
  • nugatory,
  • unmeaning,
  • absurd,
  • doesn't cut it.
  •metaphysical (adjective)
  • unphysical,
  • deep,
  • abstruse,
  • philosophical,
  • intellectual,
  • nonmaterial,
  • superior,
  • supranatural,
  • fundamental,
  • Supramundane,
  • mystical,
  • profound,
  • recondite,
  • theoretical,
  • high-flown,
  • suprahuman,
  • esoteric,
  • ideal,
  • Unfleshly,
  • preternatural,
  • numinous,
  • nonphysical,
  • Supermundane,
  • abstract,
  • superhuman,
  • transcendental,
  • jesuitic,
  • bodiless,
  • oversubtle,
  • Discarnate,
  • universal,
  • difficult,
  • eternal.
  •nonexistent (adjective)
  • dreamy,
  • imagined,
  • null and void,
  • null,
  • fancied,
  • lost,
  • mythical,
  • without foundation,
  • imaginary,
  • Perished,
  • hallucinatory,
  • departed,
  • passed on,
  • extinguished,
  • missing,
  • dreamlike,
  • passed away,
  • absent,
  • dead,
  • extinct,
  • few and far between,
  • hypothetical,
  • defunct,
  • negative,
  • baseless,
  • gone,
  • void,
  • groundless,
  • ungrounded,
  • legendary.
  •nonphysical (adjective)
  • psychic,
  • Asomatous,
  • heavenly,
  • spiritlike,
  • Disbodied,
  • unembodied,
  • subjective,
  • incorporate,
  • uncorporal.
  •pale (adjective)
  • livid,
  • doughy,
  • sallow,
  • dim,
  • bleached,
  • ashen,
  • colorless,
  • waxlike,
  • dull,
  • waxen,
  • ineffective,
  • whitish,
  • blanched,
  • pallid,
  • sick,
  • bloodless,
  • ashy,
  • washed-out,
  • pasty,
  • gray,
  • white,
  • lurid,
  • faded,
  • anemic.
  •paper (adjective)
  • cardboard,
  • wafer-thin,
  • paper-thin,
  • disposable.
  •piddly (adjective)
  • measly,
  • diddly,
  • minute,
  • negligible,
  • two-bit,
  • rinky-dink,
  • microscopic.
  •scant (adjective)
  • stingy.
  •slender/slim (adjective)
  • skinny,
  • svelte,
  • attenuate,
  • skeleton,
  • twiggy,
  • beanpole,
  • reedy,
  • beanstalk,
  • trim,
  • willowy,
  • threadlike,
  • lean,
  • narrow,
  • stick,
  • Stalky.
  •slight (adjective)
  • minor,
  • off,
  • unessential,
  • outside,
  • piddling,
  • remote,
  • modest,
  • fat.
  •tenuous (adjective)
  • doubtful,
  • attenuated,
  • rare,
  • questionable,
  • dubious.
  •thin (adjective)
  • improbable,
  • untenable,
  • unpersuasive,
  • weak-kneed,
  • scattered,
  • stretched,
  • implausible,
  • incredible,
  • thick,
  • diluted,
  • unbelievable,
  • inconceivable.
  •tottering (adjective)
  • tottery,
  • unsure,
  • precarious.
  •transient (adjective)
  • brief.
  •transient/transitory (adjective)
  • flying,
  • impermanent,
  • going by,
  • Flitting,
  • short-term,
  • Vacating,
  • short-lived,
  • deciduous,
  • Migrating,
  • changeable,
  • momentary,
  • flash,
  • passing,
  • moving,
  • Emigrating,
  • provisional,
  • Transmigratory,
  • temporal.
  •unreal (adjective)
  • romantic,
  • visionary,
  • seeming,
  • insincere,
  • ostensible,
  • pretended,
  • notional,
  • artificial,
  • reachy,
  • fabled,
  • Storybook,
  • invented,
  • nonexistent,
  • phantasmagoric,
  • figmental,
  • supposititious,
  • delusive,
  • fictive,
  • fabulous,
  • suppositious,
  • sham,
  • mock,
  • fictitious.
  •unsound (adjective)
  • erroneous,
  • demented,
  • unhinged,
  • specious,
  • lunatic,
  • deranged,
  • insecure,
  • ill,
  • dangerous,
  • insane,
  • mad,
  • illogical,
  • crazed,
  • unbacked,
  • diseased,
  • not solid,
  • flawed,
  • incorrect,
  • invalid,
  • unwell,
  • in poor health,
  • incongruous,
  • inaccurate,
  • unbalanced,
  • unhealthy.
  •vaporous (adjective)
  • hazy,
  • foggy,
  • Halituous,
  • smoggy,
  • misty.
  •waterish (adjective)
  • watery.
  •weak (adjective)
  • sluggish,
  • limp,
  • spindly,
  • lackadaisical,
  • languorous,
  • flaccid,
  • rotten,
  • supine,
  • Impuissant,
  • torpid,
  • hesitant,
  • forceless,
  • prostrate,
  • uncertain,
  • irresolute,
  • undependable,
  • spent.
  •weakly (adjective)
  • faltering,
  • laid low,
  • sensile,
  • halting.
  •weightless (adjective)
  • light as a feather.

Antonyms for In substantial:

• adj.

  • decrepit
    good, healthy, fit, young, firm, sturdy, stable, nice, sound, solid, hearty.
  • elusive
    enticing, Attracting, honest, inviting, confronting, facing, Encountering, definite, intelligible, understandable.
  • ethereal
    earthly, poor, worldly, indelicate.
  • feeble
    competent, expert, able, unbreakable, hardy, efficient, effective, capable, powerful.
  • filmy
    clear, clean, nontransparent, translucent, opaque.
  • flimsy
    heavy, convincing, tough, reasonable, plausible.
  • fragile
    durable.
  • frail
    fat, rough.
  • gauzy
    foggy, Obscured, cloudy.
  • ghostly
    normal.
  • impalpable
    palpable, tangible, believeable, perceptible.
  • inadequate
    complete, full, abundant, sufficient, perfect, finished, enough, adequate, potent.
  • insecure
    guarded, secure, certain, unshaky, steady, safe, protected, confident, sure.
  • insubstantial
    real, substantial, thick, serious, genuine, strong.
  • light
    coarse, dark, big, dusky, oppressive, gloomy, weighted, laborious, important, difficult, black, strict, solemn, grave, brunette, large, significant, useful, obscure, dim, darkened, clumsy.
  • meager
    generous, plentiful, wide, plenty, rich, wealthy, liberal, ample.
  • meaningless
    meaningful, wise, profitable, sensible, consequential, productive, worthwhile, fruitful, rational, valuable.
  • metaphysical
    factual, obvious, physical, material, concrete, objective.
  • nonexistent
    actual, existing, true, existent.
  • pale
    colorful, distinct, colored, smart, bright, radiant, light, glowing, intelligent, happy, flushed.
  • slender/slim
    overweight, plump, chubby.
  • slight
    great, major, tall, likely.
  • thin
    dense, concentrated, undiluted, obese, inflated.
  • transient
    lengthy, long-lived, perpetual, long.
  • transient/transitory
    incessant, long-lasting, neverending, permanent, persistent, undying, lasting, enduring.
  • unreal
    authentic.
  • unsound
    correct, right, accurate, well, sane, reliable, just, balanced, valid.
  • weak
    bold, noisy, unwavering, brave, active, loud.