Pronunciation: /ˌɪnsəbˈstænʃəl/
adjective a word that describes or modifies a noun, in this case, insubstantial describes something that lacks substance or solidity
A1 The paper airplane was insubstantial and flew only a short distance.
A2 Her argument was insubstantial and lacked any real evidence to support it.
B1 The company's promises of a pay raise seemed insubstantial and unreliable.
B2 The artist's latest work was criticized for being insubstantial and lacking depth.
C1 The scientific theory presented by the researcher was deemed insubstantial and lacking in empirical data.
C2 The legal team argued that the evidence against their client was insubstantial and should be dismissed.
formal The evidence presented in court was deemed insubstantial and insufficient to convict the defendant.
informal I don't think we should trust him, his promises seem insubstantial.
slang That excuse is so insubstantial, it's laughable.
figurative Her dreams felt insubstantial, like they were made of air and could easily slip away.
insubstantiated
insubstantials
more insubstantial
most insubstantial
insubstantial
will be insubstantial
has been insubstantial
is being insubstantial
insubstantial
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to insubstantiate
insubstantiating
insubstantiated