Simple Definition of insubstantial
: not large or important
: not strong or solid
: not real : not made of a real substance
Examples of insubstantial in a sentence
Their contribution to the fund was insubstantial.
as insubstantial as a ghost
Origin and Etymology of insubstantial
probably from French insubstantiel, from Late Latin insubstantialis, from Latin in- + Late Latin substantialis substantial
First Known Use: 1607
INSUBSTANTIAL Defined for Kids
Definition of insubstantial for Students
: not large or important <Her contribution was insubstantial.>
Seen and Heard
What made you want to look up insubstantial? Please tell us where you read or heard it (including the quote, if possible).