Sharon's performance review demonstrated her skills were inadequate. Inadequate means that Sharon's skills were not up to par with her employer's expectations.
With Bernard, of course, anger was inadequate
He was inadequate in his delivery of a good eulogy.
This meal was quite delicious, but inadequate- I'll have another, please! The ensign's capabilities were inadequate for the task at hand.
This framing structure is inadequate to hold the roof up.
As an adverb - The lack of UN funds made the attempt to help the refugees pitifully inadequate .
Due to inadequate thrust, my probe initially failed, but with increased impulse, the re-entry was successful.
The governor stated that the budget for the current year is inadequate to attend the state requirements.
His grades were inadequate. The food provided inadequate nourishment. Money was inadequate to finance the venture.
scarcity or inadequate amount
When Jacob delivered the wrapped gifts to the homeless shelter, he could see how woefully inadequate their holiday would have been without his generosity.
The prefix for inadequate is in-. The prefix in- means not.
Inadequate is bad, it is not enough to do well or succeed.