unsubstantial

Adjective
Synonyms: insubstantialunreal

WordNet 3.0

Adjective (1)

  1. lacking material form or substance; unreal“as insubstantial as a dream”“an insubstantial mirage on the horizon”Synonyms: insubstantialunreal
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Webster's Dictionary (GCIDE)

Unsubstantial \Unsubstantial\ See substantial.
Unsubstantial \Un`sub*stan"tial\, a. Lacking in matter or substance; visionary; chimerical. [1913 Webster]
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