Definition for Unsubstantial:

• Not solid; not real.

Synonyms for Unsubstantial:

• adj.

  •disreputable (adjective)
  • sleazy.
  •imaginary (adjective)
  • apparitional.
  •immaterial (adjective)
  • eerie,
  • spiritual,
  • wraithlike,
  • abstract,
  • theoretical,
  • unearthly,
  • unworldly,
  • conceptual,
  • unembodied,
  • Asomatous,
  • imponderable,
  • impalpable,
  • incorporeal,
  • Unfleshly,
  • supernatural,
  • nonmaterial.
  •insufficient (adjective)
  • inadequate.
  •lacking substance (adjective)
  • aerial,
  • filigree,
  • diaphanous,
  • inane.
  •light (adjective)
  • Gossamery,
  • weightless,
  • frothy.
  •metaphysical (adjective)
  • unphysical.
  •notional (adjective)
  • notional.
  •unreal (adjective)
  • unrealistic,
  • unactual,
  • not real,
  • illusory.
  •unsubstantial (adjective)
  • tenuous,
  • inessential,
  • phantasmal,
  • vacuous,
  • spectral,
  • null,
  • insignificance,
  • vacant,
  • empty,
  • chimerical,
  • nonexistence,
  • unconcrete.

• n.

  •
  • body.
  •
  • strong,
  • delicate.
  •
  • shaky,
  • likely.

• Other synonyms:

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

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.