'Nonperformance' definitions:

Definition of 'nonperformance'

From: WordNet
noun
Failure to act with the prudence that a reasonable person would exercise under the same circumstances [syn: negligence, carelessness, neglect, nonperformance]

Definition of 'Nonperformance'

From: GCIDE
  • Nonperformance \Non`per*form"ance\, n. Neglect or failure to perform. [1913 Webster] nonphilosophic