Synonyms for In-substantial:

• adj.

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

Antonyms for In-substantial:

• adj.

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