insufficient

Meanings

1. 1
   adj

   of a quantity not able to fulfill a need or requirement

   insufficient funds

2. 2
   det

   An inadequate quantity of; not enough.

   Insufficient time is available to reflect on the problem.

3. 3
   det

   A quantity (of something) that is less than is needed.

   Insufficient of the building remains to determine its age.

4. 4
   adj

   Not sufficient; of a type or kind that does not suffice, that does not satisfy requirements or needs.

   an insufficient amount

5. 5
   adj

   Not sufficient; lacking competent power or ability; unqualified, unequal, unfit.

   Brother Coſroe, I find my ſelfe agreeu’d, Yet inſufficient to expreſſe the ſame: For it requires a great and thundering ſpeech: […]

Etymology

From Middle French insufficient, from Latin insufficiens. See also in- + sufficient.