'Inadequacy' definitions:

Definition of 'inadequacy'

(from WordNet)
noun
Lack of an adequate quantity or number; "the inadequacy of unemployment benefits" [syn: insufficiency, inadequacy, deficiency] [ant: adequacy, sufficiency]
noun
A lack of competence; "pointed out the insufficiencies in my report"; "juvenile offenses often reflect an inadequacy in the parents" [syn: insufficiency, inadequacy]
noun
Unsatisfactoriness by virtue of being inadequate [syn: inadequacy, inadequateness] [ant: adequacy, adequateness]

Definition of 'Inadequacy'

From: GCIDE
  • Inadequacy \In*ad"e*qua*cy\, n. [From Inadequate.] The quality or state of being inadequate or insufficient; defectiveness; insufficiency; inadequateness. [1913 Webster]
  • The inadequacy and consequent inefficacy of the alleged causes. --Dr. T. Dwight. [1913 Webster]

Synonyms of 'inadequacy'

From: Moby Thesaurus