unsubstantial

/ˌʌnsəbˈstænʃəl/
adjective
  1. Not solid, firm, or strong; lacking physical substance or material basis.
    • The fog was so thick that the trees looked like unsubstantial ghosts.
    • The old bridge was made of unsubstantial wood and swayed in the wind.
    • She built a house of cards, an unsubstantial structure that collapsed at the slightest touch.
  2. Not based on fact or reality; weak, unconvincing, or lacking evidence.
    • Without any documents, the claim remained unsubstantial and was rejected.
    • The prosecutor dismissed the alibi as unsubstantial and full of holes.
    • His argument was unsubstantial, relying only on rumors and guesses.
  3. Of little importance, value, or significance; trivial.
    • The report focused on unsubstantial details instead of the main issue.
    • They argued over an unsubstantial difference in price, wasting an hour.
    • Her worries proved unsubstantial once the real problem was solved.
What does "unsubstantial" mean? | whatsthatwordmean | whatsthatwordmean