#1
deficient s. [
lacking, wanting] inadequate in amount or degree; "a deficient education"; "deficient in common sense"; "lacking in stamina"; "tested and found wanting"
. wn #2
deficient a. [
insufficient] of a quantity not able to fulfill a need or requirement; "insufficient funds"
. wn #3
deficient s. [
inferior, substandard] falling short of some prescribed norm; "substandard housing"
. wn