Synonyms for Unsubstantial:

• adj.

  •bodiless (adjective)
  • dis corporate,
  • more discorporate,
  • dis-corporate,
  • most discorporate.
  •disreputable (adjective)
  • sleazy.
  •dreamy (adjective)
  • preoccupied,
  • introspective,
  • mis tier,
  • misty,
  • more relaxing,
  • out of world,
  • visionary,
  • most relaxing,
  • more lulling,
  • out world,
  • more introvertive,
  • most phantasmagorical,
  • pre-occupied,
  • un substantial,
  • pre occupied,
  • most daydreaming,
  • more daydreaming,
  • out this world,
  • most lulling,
  • more phantasmagorical,
  • un-substantial,
  • most introvertive,
  • mis-tier,
  • soothing.
  •empty (adjective)
  • meaningless,
  • empty,
  • dis honest,
  • insincere,
  • in sincerest,
  • in-sincerest,
  • de void,
  • in-sincerer,
  • in sincere,
  • un intelligent,
  • in expressive,
  • in-sincere,
  • de-void,
  • un-intelligent,
  • un satisfactory,
  • in sipid,
  • in effectual,
  • in-sipid,
  • in-expressive,
  • in sincerer,
  • un-satisfactory,
  • in-effectual,
  • dis-honest,
  • trivial.
  •ethereal (adjective)
  • ghostly,
  • sub lime,
  • un-worldliest,
  • gossamer,
  • sub-lime,
  • un earthlier,
  • re fined,
  • un-earthlier,
  • un-worldly,
  • fairiest,
  • un worldly,
  • un-worldlier,
  • un worldliest,
  • un earthliest,
  • un earthly,
  • un-earthliest,
  • fairier,
  • un worldlier,
  • un-earthly.
  •floating (adjective)
  • more sailing,
  • most wafting,
  • un sinkable,
  • more unsinkable,
  • non submersible,
  • un-sinkable,
  • most hovering,
  • more nonsubmersible,
  • un-attached,
  • most nonsubmersible,
  • more wafting,
  • non-submersible,
  • most unsinkable,
  • more hovering,
  • most sailing.
  •frail (adjective)
  • more fracturable,
  • wishy washy,
  • more shatterable,
  • wimpiest,
  • most fracturable,
  • most shattery,
  • most shatterable,
  • wimpier,
  • more shattery,
  • wishy-washy,
  • wishywashy.
  •futile (adjective)
  • insufficient,
  • out window,
  • un needed,
  • more impracticable,
  • un profitable,
  • un-productive,
  • save one breath,
  • in-effective,
  • more ineffective,
  • most resultless,
  • un successful,
  • save breath,
  • un important,
  • un productive,
  • in-sufficient,
  • un-needed,
  • more profitless,
  • in sufficient,
  • most profitless,
  • profitless,
  • in effective,
  • un-successful,
  • un-availing,
  • save ones breath,
  • sterile,
  • more resultless,
  • un-profitable,
  • un-important,
  • ineffective,
  • un availing.
  •illogical (adjective)
  • in congruous,
  • more sophistical,
  • most self contradictory,
  • un-connected,
  • un tenable,
  • in correct,
  • in-valid,
  • irrelevant,
  • selfcontradictory,
  • in consistent,
  • more self contradictory,
  • unproved,
  • in-consistent,
  • off the wall,
  • most selfcontradictory,
  • more selfcontradictory,
  • in valid,
  • more casuistic,
  • in conclusive,
  • self contradictory,
  • most self-contradictory,
  • more self-contradictory,
  • un-proved,
  • un-scientific,
  • in consequent,
  • in-congruous,
  • un proved,
  • un-tenable,
  • most sophistical,
  • most casuistic,
  • in-consequent,
  • un scientific,
  • in-correct,
  • illogical,
  • un connected,
  • off wall,
  • in-conclusive.
  •imaginary (adjective)
  • dreamed-up,
  • hypothetical,
  • apparitional,
  • fictional,
  • figmental.
  •immaterial (adjective)
  • abstract,
  • incorporeal,
  • non-material,
  • conceptual,
  • spiritual,
  • supernatural,
  • imponderable,
  • wraithlike,
  • spiritlike,
  • impalpable,
  • unembodied,
  • Unfleshly,
  • nonmaterial,
  • theoretical,
  • unearthly,
  • Asomatous,
  • eerie,
  • unworldly,
  • Disbodied.
  •implausible (adjective)
  • full holes,
  • reachier,
  • un-convincing,
  • re achier,
  • reachiest,
  • wont wash,
  • re achy,
  • for birds,
  • wont hold water,
  • re-achier,
  • re achiest,
  • un convincing,
  • re-achy,
  • full of holes,
  • re-achiest.
  •improbable (adjective)
  • unheard of,
  • hundred-to-one,
  • iffy,
  • outside chance,
  • slim and none,
  • not expected.
  •inconceivable (adjective)
  • in supposable,
  • in-supposable,
  • extra-ordinary,
  • more incogitable,
  • unheardof,
  • un thinkable,
  • more imcomprehensible,
  • un-knowable,
  • most unknowable,
  • un knowable,
  • mindboggling,
  • more unknowable,
  • most insupposable,
  • more insupposable,
  • wont fly,
  • most incogitable,
  • most imcomprehensible,
  • in-cogitable,
  • staggering,
  • imcomprehensible,
  • in-conceivable,
  • in cogitable,
  • mind boggling,
  • in conceivable,
  • unheard-of,
  • un-thinkable.
  •incredible (adjective)
  • in credible,
  • out question,
  • in-credible,
  • out the question.
  •infirm (adjective)
  • in firmest,
  • in-firmer,
  • in-firmest,
  • un stable,
  • most faltering,
  • in securer,
  • in-firm,
  • in firmer,
  • un-stablest,
  • un stabler,
  • more anile,
  • in-securest,
  • more enfeebled,
  • un-stabler,
  • more faltering,
  • un-stable,
  • in secure,
  • un stablest,
  • most sensile,
  • more sensile,
  • most anile,
  • in-secure,
  • in securest,
  • most enfeebled,
  • in-securer.
  •insignificant (adjective)
  • in considerable,
  • most minim,
  • non essential,
  • in significant,
  • most minimal,
  • in-appreciable,
  • in-considerable,
  • in consequential,
  • in appreciable,
  • in-significant,
  • in-consequential,
  • most purportless,
  • more purportless,
  • inconsiderable,
  • more minim.
  •insubstantial (adjective)
  • too little too late,
  • in substantial,
  • fly by night,
  • in-substantial.
  •insufficient (adjective)
  • inadequate.
  •intangible (adjective)
  • evanescent,
  • in-tangible,
  • un-sure,
  • unapparent,
  • in-visible,
  • more eluding,
  • in visible,
  • un apparent,
  • un-observable,
  • in tangible,
  • most unapparent,
  • un-apparent,
  • most evading,
  • more evading,
  • more unapparent,
  • un observable,
  • in determinate,
  • most eluding,
  • un sure.
  •jerry-built (adjective)
  • jerry-rigged,
  • shoddy,
  • junky.
  •lacking substance (adjective)
  • inane,
  • filigree,
  • diaphanous.
  •less (adjective)
  • not as great.
  •light (adjective)
  • lithe,
  • wee,
  • light-footed,
  • hardly enough,
  • sylphlike,
  • tiny,
  • featherweight,
  • hardly any,
  • tissuelike,
  • Imponderous,
  • not rich,
  • lightest,
  • not much,
  • Gossamery,
  • weightless,
  • frothy,
  • shoestring,
  • not many,
  • Floatable,
  • fragmentary,
  • unheavy.
  •limp (adjective)
  • limber,
  • flexuous.
  •metaphysical (adjective)
  • Supermundane,
  • jesuitic,
  • unphysical,
  • Supramundane,
  • suprahuman,
  • supranatural,
  • superhuman,
  • oversubtle.
  •moony (adjective)
  • most woolgathering,
  • more woolgathering,
  • woolgathering.
  •nonexistent (adjective)
  • passed away,
  • null and void,
  • Perished,
  • Non-existent,
  • few and far between,
  • passed on.
  •nonphysical (adjective)
  • non-physical.
  •notional (adjective)
  • notional.
  •Other relevant words: (adjective)
  • futile,
  • cut-rate,
  • to no effect,
  • sophistical,
  • no avail,
  • jerry-built,
  • anile,
  • unsinkable,
  • thin,
  • rinkydink,
  • nonsubmersible,
  • wimpy,
  • pint-sized,
  • rings phony,
  • Incogitable,
  • Non-essential,
  • metaphysical,
  • Controvertible,
  • no purpose,
  • flawed,
  • half-pint,
  • insubstantial,
  • Waterish,
  • Insupposable,
  • floating,
  • unreal,
  • light,
  • adumbral,
  • unsound,
  • flimsy,
  • small fry,
  • no dice,
  • immaterial,
  • inconceivable,
  • save one's breath,
  • out the window,
  • shadowy,
  • doughier,
  • under-sized,
  • in vain,
  • ethereal,
  • won't wash,
  • Unconsequential,
  • seethrough,
  • wrong,
  • not worth mentioning,
  • small-fry,
  • ungrounded,
  • Resultless,
  • in poor health,
  • unknowable,
  • less,
  • bodiless,
  • unbelievable,
  • umbral,
  • shatterable,
  • moony,
  • Subtile,
  • for the birds,
  • won't fly,
  • discorporate,
  • weakly,
  • pale,
  • fracturable,
  • insignificant,
  • to no avail,
  • dreamy,
  • infirm,
  • unpersuasive,
  • to no purpose,
  • unbacked,
  • papery,
  • wafer-thin,
  • sensile,
  • shrimp,
  • thick,
  • casuistic,
  • washed out,
  • peewee,
  • on treadmill,
  • on a treadmill,
  • cut rate,
  • introvertive,
  • laid low,
  • see through,
  • not following,
  • Purportless,
  • puny,
  • imaginary,
  • no effect,
  • paper-thin,
  • implausible,
  • frail,
  • out of question,
  • in firm,
  • paper thin,
  • weak,
  • small time,
  • Shattery,
  • intangible,
  • extra ordinary,
  • whitish,
  • without foundation,
  • house of cards,
  • broken down,
  • chiffon,
  • light as a feather,
  • won't hold water,
  • shrimper,
  • phantasmagorical,
  • reachy,
  • improbable,
  • self-contradictory,
  • without basis,
  • nonexistent,
  • doughy.
  •pale (adjective)
  • washed-out,
  • most whitish,
  • waxlike,
  • most waxlike,
  • more bleached,
  • more whitish,
  • more waxlike,
  • most bleached,
  • doughiest,
  • pasty,
  • washedout.
  •puny (adjective)
  • more halfpint,
  • pint sized,
  • half pint,
  • more half-pint,
  • more pint-sized,
  • most smallfry,
  • un-consequential,
  • most pint sized,
  • most half pint,
  • more small fry,
  • most nothing,
  • more unconsequential,
  • twobit,
  • more pint sized,
  • more smallfry,
  • most half-pint,
  • most small-fry,
  • under sized,
  • more peanut,
  • most unconsequential,
  • most peewee,
  • zilcher,
  • more small-fry,
  • more nothing,
  • more peewee,
  • runter,
  • halfpint,
  • smallfry,
  • runtest,
  • shrimpest,
  • un-developed,
  • most peanut,
  • more zero,
  • most small fry,
  • two bit,
  • most halfpint,
  • more half pint,
  • zilchest,
  • most zero,
  • most pint-sized,
  • un consequential.
  •shadowy (adjective)
  • more adumbral,
  • most adumbral,
  • more umbral,
  • most umbral.
  •shallow (adjective)
  • skin-deep.
  •sleazy (adjective)
  • brokendown.
  •thick (adjective)
  • un-fairest,
  • un fairest,
  • un-fair,
  • un-juster,
  • un-fairer,
  • un justest,
  • un just,
  • un-just,
  • un fairer,
  • un fair,
  • un juster,
  • un-justest.
  •thin (adjective)
  • more paperthin,
  • most wafer thin,
  • most waferthin,
  • trans-lucent,
  • trans lucent,
  • more wafer-thin,
  • most diluted,
  • more attenuated,
  • sub-tile,
  • more wafer thin,
  • most paper-thin,
  • more paper thin,
  • most attenuate,
  • weakkneed,
  • most weakkneed,
  • most stretched,
  • more waferthin,
  • most paper thin,
  • more paper-thin,
  • sub tiler,
  • most weak-kneed,
  • most paperthin,
  • wafer thin,
  • waferthin,
  • more stretched,
  • more weak-kneed,
  • subtiler,
  • weak kneed,
  • paperthin,
  • most wafer-thin,
  • more weakkneed,
  • subtilest,
  • most attenuated,
  • more attenuate,
  • sub-tiler,
  • sub tile,
  • more weak kneed.
  •unbelievable (adjective)
  • beyond belief,
  • open to doubt,
  • past belief,
  • cockamamie,
  • lamebrained.
  •unbodied (adjective)
  • un-bodied,
  • un bodied.
  •unconceivable (adjective)
  • un-conceivable,
  • un conceivable.
  •uncorporal (adjective)
  • un-corporal,
  • un corporal.
  •unreal (adjective)
  • illusory,
  • not real,
  • unactual,
  • unrealistic,
  • Storybook.
  •unsound (adjective)
  • un soundest,
  • in-saner,
  • un backed,
  • un-reliable,
  • un-healthy,
  • un safer,
  • more unbacked,
  • un-hinged,
  • un safe,
  • un-steadier,
  • un-balanced,
  • in saner,
  • un hinged,
  • un-safer,
  • not solid,
  • un-steadiest,
  • un-sounder,
  • dis eased,
  • in sanest,
  • un-safest,
  • un safest,
  • un steadier,
  • un healthy,
  • de ranged,
  • un steadiest,
  • dis-eased,
  • un healthier,
  • un healthiest,
  • un sounder,
  • un-sound,
  • de-ranged,
  • un-soundest,
  • in-sane,
  • un sound,
  • in sane,
  • un-healthiest,
  • in accurate,
  • un-backed,
  • un reliable,
  • un-safe,
  • un steady,
  • most unbacked.
  •unsubstantial (adjective)
  • inessential,
  • vacuous,
  • insignificance,
  • vacant,
  • null,
  • spectral,
  • phantasmal,
  • tenuous,
  • nonexistence,
  • chimerical,
  • unconcrete.
  •vanishing (adjective)
  • more evanescence.
  •weak (adjective)
  • Impuissant,
  • forceless,
  • weakest,
  • out of gas.
  •weightless (adjective)
  • light as feather.
  •wrong (adjective)
  • not right,
  • on the wrong track,
  • fluffed,
  • off-target,
  • not working,
  • misfigured,
  • not precise,
  • out of line,
  • in error,
  • Misconstrued.

• n.

  •
  • body.
  •
  • strong,
  • delicate.
  •
  • shaky,
  • likely.
  •aerial (noun)
  • aerial.
  •aeriform (noun)
  • aeriform.
  •aery (noun)
  • aery.
  •airy (noun)
  • airy.

• v.

  •Other relevant words: (verb)
  • quantity,
  • amount.

• Other synonyms:

  •
  • Discarnate,
  • Unconceivable,
  • unbodied,
  • nonphysical,
  • uncorporal,
  • unconvincing,
  • limp.
  •
  • incredible,
  • disembodied,
  • decrepit.
  •
  • fragile,
  • feeble.
  •fanciful
  • vaporous.
  •Other relevant words:
  • unsturdy.
  •Other relevant words (noun):
  • creaky,
  • slight,
  • provisional,
  • languid,
  • communicate,
  • die,
  • broken-down,
  • transcend,
  • creaking,
  • sketchy,
  • authorize,
  • derelict,
  • erroneous,
  • untrustworthy,
  • dreamlike,
  • gauzy,
  • ideal,
  • piddling,
  • doodad,
  • subtle,
  • rotten,
  • dubious,
  • fruitless,
  • artificial,
  • autistic,
  • phantasmagoric,
  • beyond repair,
  • outshine,
  • beat,
  • transmundane,
  • dangerous,
  • ineffectual,
  • delusive,
  • surpass,
  • diluted,
  • fleeting,
  • watered,
  • low,
  • baseless,
  • ridiculous,
  • foolish,
  • delusional,
  • self-deceptive,
  • rocky,
  • Prostrated,
  • prostrate,
  • wispy,
  • tender,
  • niggling,
  • skimpy,
  • fanciful,
  • seeming,
  • hollow,
  • fantastic,
  • unsure,
  • debilitated,
  • excrete,
  • vapid,
  • cheap-jack,
  • brittle,
  • heretical,
  • tentative,
  • sparse,
  • psychic,
  • unsatisfying,
  • fantastical,
  • frill,
  • garbage,
  • precarious,
  • vain,
  • dilapidated,
  • abortive,
  • delusionary,
  • run-down,
  • undependable,
  • false,
  • elusive,
  • incorporate,
  • unfirm,
  • windy,
  • overrun,
  • unprofitable,
  • fancied,
  • minor,
  • ephemeral,
  • jazz,
  • occult,
  • effeminate,
  • attenuate,
  • rickety,
  • enervated,
  • nugatory,
  • groundless,
  • delusory,
  • gilding,
  • unserviceable,
  • decoration,
  • desultory,
  • useless,
  • Extramundane,
  • neglected,
  • preposterous,
  • dim,
  • temporary,
  • chintzy,
  • surreal,
  • stringy,
  • paltry,
  • moderate,
  • ornament,
  • frivolous,
  • adulterated,
  • meagre,
  • chimeric,
  • psychical,
  • namby-pamby,
  • enfeebled,
  • astral,
  • scant,
  • uncompressed,
  • filmy,
  • misleading,
  • transitory,
  • attenuated,
  • shifting,
  • Unsteadfast,
  • ruined,
  • hallucinative,
  • ostensible,
  • shabby,
  • embellishment,
  • imperceptible,
  • not difficult,
  • outweigh,
  • shifty,
  • jerry,
  • heterodox,
  • lame,
  • deficient,
  • occur,
  • Picayunish,
  • nonsensical,
  • beautification,
  • Sapped,
  • small,
  • unreliable,
  • weakened,
  • unperceivable,
  • inconsequential,
  • virtual,
  • imprecise,
  • asinine,
  • poor,
  • cut,
  • fatuous,
  • breakable,
  • Crumbling,
  • supposititious,
  • nimble,
  • illusionary,
  • Uncompact,
  • inconstant,
  • treacherous,
  • jejune,
  • worthless,
  • unsatisfactory,
  • tacky,
  • rare,
  • hazardous,
  • apparent,
  • petty,
  • pass,
  • fallacious,
  • unextended,
  • illusive,
  • slipshod,
  • perilous,
  • falling down,
  • lightweight,
  • fine,
  • insecure,
  • outdo,
  • float,
  • inconclusive,
  • effete,
  • thinned,
  • vague,
  • wimpish,
  • trifling,
  • doubtful,
  • softened,
  • falling apart,
  • dilute,
  • uncertain,
  • indefinite,
  • Unsolid,
  • cobwebby,
  • hazy,
  • Unsustained,
  • unavailing,
  • crumbly,
  • idle,
  • tawdry,
  • womanish,
  • superficial,
  • elapse,
  • otherworldly,
  • unstable,
  • soft,
  • ramshackle,
  • unimportant,
  • unessential,
  • tatty,
  • cranky,
  • extend,
  • tottering,
  • wasted,
  • risky,
  • devolve,
  • unsteady,
  • frangible,
  • potential,
  • illusional,
  • deceptive,
  • asthenic,
  • bootless,
  • ticklish,
  • fade,
  • unfounded,
  • slippery,
  • expire,
  • Rarefiable,
  • absurd,
  • silly,
  • hallucinational,
  • down-and-out,
  • eliminate,
  • gimcrack,
  • Disintegrating,
  • watered-down,
  • faint,
  • makeshift,
  • dainty,
  • adornment,
  • surmount,
  • wobbling,
  • drooping,
  • phantom,
  • hallucinatory,
  • gingerbread,
  • obscure,
  • deceitful,
  • cheap,
  • fuss,
  • specious,
  • wobbly,
  • nebulous,
  • untrue,
  • gaseous,
  • visualized,
  • apocryphal,
  • negligible,
  • tumbledown,
  • sissified,
  • rarefied,
  • exceed,
  • in disrepair,
  • formless.

Antonyms for Unsubstantial:

• adj.

  • flimsy
    well-founded, undeniable.
  • Other antonyms:
    discernible, expedient, lusty, potent, noticeable, able-bodied, rough, advantageous, coarse, strapping, muscular, vigorous, valid, sufficient, energetic, sinewy, bulky, athletic, useful, strengthened, Vitalized, knockabout, husky, beneficial, animal, massive, observable, carnal, visible, durable, hard, lasting, beefy, efficient, tough, healthy, stout, powerful, profitable, worthy, serviceable, capable, hale, virile, robust, mighty, hardy, fortified, valuable, effective, fit, fleshly, brawny, red-blooded, toughened, inured, invigorated, detectable, solid, sensible, hardened, adequate, rugged, heavy, competent, rude, recovering.