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Synonyms for insubstantial

modified

  1. Imaginary

    ephemeral, illusory, intangible; see fanciful 1, imaginary, unreal.

  2. Flimsy

    petty, slight, frail, tenuous; see flimsy 1, poor 2, weak 2.

See insubstantial in Webster's New World Roget's A-Z Thesaurus II

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