Definition of res judicata in English:

res judicata

Syllabification: res ju·di·ca·ta
Pronunciation: /ˌrēz ˌjo͞odiˈkätə, ˌrās

noun (plural res judicatae /ˌjo͞odiˈkätē, -tī/)

A matter that has been adjudicated by a competent court and may not be pursued further by the same parties.
More example sentences
  • The effect of this judgment was that the validity of the patent was for the purposes of the inquiry res judicata as between the parties to the action.
  • The Federal Magistrate considered that the matter was res judicata by reason of the previous application to the Federal Court, and dismissed the application.
  • The doctrine of res judicata prevents the retrial of judicially settled issues and asserts the finality of judges' decisions.


Latin, literally 'judged matter'.

Definition of res judicata in: