The resources were insufficient for the project.

Not enough in quantity, quality, or degree.
Her explanation was insufficient to clarify the issue.
There was insufficient evidence to support the claim.
The food provided was insufficient for all the guests.
insufficient funds
insufficient information
insufficient resources
inadequate
deficient
lacking
The food was insufficient for everyone.

Not enough in quantity or quality.
The funds were insufficient to cover the project.
Her explanation was insufficient to convince the committee.
There was insufficient evidence to support the claim.
insufficient resources
insufficient funds
insufficient evidence
inadequate
deficient
lacking