insubstantial

Adjective
Synonyms: unsubstantialunrealjejune

WordNet 3.0

Adjective (2)

  1. lacking material form or substance; unreal“as insubstantial as a dream”“an insubstantial mirage on the horizon”Synonyms: unsubstantialunreal
  2. lacking in nutritive value“the jejune diets of the very poor”Synonyms: jejune
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Webster's Dictionary (GCIDE)

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