unsubstantial

/ˈʌnsəbˌstæntʃəl/
IPA guide

Other forms: unsubstantially

Definitions of unsubstantial
  1. adjective
    lacking material form or substance; unreal
    synonyms: insubstantial, unreal
    aerial, aeriform, aery, airy, ethereal
    characterized by lightness and insubstantiality; as impalpable or intangible as air
    shadowy, wraithlike
    lacking in substance
    stringy
    consisting of or containing string or strings
    immaterial, nonmaterial
    not consisting of matter
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