inadequacy

Plural: inadequacies

Noun

• lack of an adequate quantity or number
  • "the inadequacy of unemployment benefits"
• a lack of competence
  • "juvenile offenses often reflect an inadequacy in the parents"
• unsatisfactoriness by virtue of being inadequate
• The state of being inadequate.
• A shortage of required material.
• A lack of competence or ability.

Synonyms

deficiency, inadequateness, insufficiency, ;, inability, incapability, incompetence

Antonyms

adequacy, sufficiency, ;, plenty#Noun