neglect : Idioms & Phrases

• noun failure of caretakers to provide adequate emotional and physical care for a child
  

WordNet

• noun (law) breach of a duty
  

WordNet

Self`-neg*lect"ing noun

Definitions

1. A neglecting of one's self, or of one's own interests.

   Self-love, my liege, is not so vile a sin As self-neglecting. Shak.

Webster 1913

• noun a tendency to be negligent and uncaring
  delinquency; dereliction.
  
  • he inherited his delinquency from his father
  • his derelictions were not really intended as crimes
  • his adolescent protest consisted of willful neglect of all his responsibilities

WordNet