deficient: Meaning and Definition of
de•fi•cient
Pronunciation: (di-fish'unt), [key]
— adj.
- lacking some element or characteristic; defective: deficient in taste.
- insufficient; inadequate: deficient knowledge.
—n.
- a person who is deficient, esp. one who is mentally defective.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.