insubstantial

insubstantial
    adj 1: lacking material form or substance; unreal; "as
           insubstantial as a dream"; "an insubstantial mirage on
           the horizon" [syn: {insubstantial}, {unsubstantial},
           {unreal}] [ant: {material}, {real}, {substantial}]
    2: lacking in nutritive value; "the jejune diets of the very
       poor" [syn: {insubstantial}, {jejune}]
    

Insubstantial \In`sub*stan"tial\, a.
   Unsubstantial; not real or strong. "Insubstantial pageant."
   [R.] --Shak.
   [1913 Webster]
    

196 Moby Thesaurus words for "insubstantial":
      adulterated, airy, asomatous, astral, attenuate, attenuated,
      bodiless, boyish, brittle, capricious, changeable, chimerical,
      corruptible, cut, dangerous, decarnate, decarnated, deciduous,
      decrepit, defalcation, deficiency, deficit, delicate, desultory,
      diaphanous, dilute, diluted, discarnate, disembodied, dying,
      ephemeral, ethereal, evanescent, extramundane, fading, false,
      fancied, fanciful, fantastic, feeble, fickle, fine, fine-drawn,
      finespun, fleeting, flimsy, flitting, fly-by-night, flying,
      fragile, frail, fugacious, fugitive, gaseous, gauzy, ghostly,
      girlish, gossamer, gracile, hallucinatory, illusive, illusory,
      imaginary, imagined, immaterial, impalpable, impermanent,
      impetuous, imponderable, impulsive, inadequacy, inconclusive,
      inconstant, incorporate, incorporeal, infirm, insecure,
      insignificant, insufficiency, intangible, lack, lacy, light,
      metaphysical, misty, momentary, mortal, mutable, nondurable,
      nonmaterial, nonpermanent, nonphysical, nonsubstantial, occult,
      otherworldly, paltry, papery, passing, paucity, perilous,
      perishable, phantasmal, phantom, poor, poverty, precarious,
      provisional, psychic, puny, rare, rarefied, risky, scant,
      scantiness, scarceness, shadowy, shaky, shifting, shifty,
      short-lived, shortage, slender, slenderish, slight, slight-made,
      slim, slimmish, slinky, slippery, small, spiritual, subtile,
      subtle, supernatural, svelte, sylphlike, temporal, temporary,
      tentative, tenuous, thin, thin-bodied, thin-set, thin-spun,
      thinned, thinned-out, thinnish, threadlike, ticklish, transient,
      transitive, transitory, transmundane, treacherous, uncompact,
      uncompressed, unconcrete, undependable, underage, undurable,
      unearthly, unembodied, unenduring, unextended, unfaithworthy,
      unfleshly, unphysical, unproved, unreal, unreliable, unrigorous,
      unsolid, unsound, unstable, unsteadfast, unsteady, unsubstanced,
      unsubstantial, unsure, unsustained, untrustworthy, unworldly,
      vague, vaporous, visionary, volatile, wasp-waisted, watered,
      watered-down, watery, weak, weightless, willowy, windy, wiredrawn,
      wispy