Simple Definition of insubstantial
: not large or important
: not strong or solid
: not real : not made of a real substance
Examples of insubstantial
Their contribution to the fund was insubstantial.
as insubstantial as a ghost
Origin of insubstantial
probably from French insubstantiel, from Late Latin insubstantialis, from Latin in- + Late Latin substantialis substantial
First Known Use: 1607
Learn More about insubstantial
Thesaurus: All synonyms and antonyms for "insubstantial" Spanish Central: Translation of "insubstantial" Nglish: Translation of "insubstantial" for Spanish speakers
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