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nisi Syllabification: ni·si
Pronunciation: /ˈnīsī/

Definition of nisi in English:


[postpositive] Law
(Of a decree, order, or rule) taking effect or having validity only after certain specified conditions are met.
Example sentences
  • Certainly, insofar as the order nisi seeks writs of mandamus and certiorari, it is outside of the time limit.
  • It does, in my argument or my submission, give rise to a proper application for an order nisi for mandamus.
  • This Court will not hear applications for orders nisi comprising three Justices.


Mid 19th century: from Latin, literally 'unless'.

Definition of nisi in:
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