negligence Syllabification: (neg·li·gence)Pronunciation: /ˈnegləjəns/Translate negligence | into French | into German | into Italian | into Spanish Definition of negligence noun failure to take proper care in doing something:some of these accidents are due to negligence Law failure to use reasonable care, resulting in damage or injury to another. negligence in other Oxford dictionaries Definition of negligence in the British & World English dictionary