insufficiency

Noun

• lack of an adequate quantity or number
  • the inadequacy of unemployment benefits
    

• (pathology) inability of a bodily part or organ to function normally

• a lack of competence
  • pointed out the insufficiencies in my report
    
  • juvenile offenses often reflect an inadequacy in the parents
    

Related words

• Synonyms: 
  inadequacy , deficiency
• Antonyms: 
  sufficiency , adequacy