deficiency

the state of needing something that is absent or unavailable; "there is a serious lack of insight into the problem"; "water is the critical deficiency in desert regions"; "for want of a nail the shoe was lost"

lack of an adequate quantity or number; "the inadequacy of unemployment benefits"

deficiency
Definition of deficiency: the state of needing something that is absent or unavailable; "there is a serious lack of insight into the problem"; "water is the critical deficiency* in desert regions"; "for want of a nail the shoe was lost"* lack of an adequate quantity or number; "the inadequacy of unemployment benefits"