Diligentia Law and Legal Definition

Diligentia is a Latin term. Diligentia means carefulness or diligence. If a person is contractually obliged to look after another’s property, lack of proper diligentia can make the person liable. Failure of the proper exercise of diligentia can also result in a tortious liability.

In the civil law, there are three degrees of diligence; diligentia or ordinary diligence; exactissima diligentia or extraordinary diligence; and levissima diligentia or slight diligence. Similarly, there are three degrees of fault or neglect; lata culpa or gross fault or neglect; levis culpa or ordinary fault or neglect; and levissima culpa or slight fault or neglect.