[ nahy-sahy, nee-see ]
/ ˈnaɪ saɪ, ˈni si /


not yet final or absolute (used, especially in law, to indicate that a judgment or decree will become final on a particular date unless set aside or invalidated by certain specified contingencies): a decree nisi.


Nearby words

  1. nisei,
  2. nisgul,
  3. nish,
  4. nishapur,
  5. nishinomiya,
  6. nisi prius,
  7. niskin bottle,
  8. nissan,
  9. nissen hut,
  10. nissl substance

Origin of nisi

< Latin: if not, unless (conjunction) Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for nisi

British Dictionary definitions for nisi


/ (ˈnaɪsaɪ) /


(postpositive) law (of a court order) coming into effect on a specified date unless cause is shown within a certain period why it should nota decree nisi

Word Origin for nisi

C19: from Latin: unless, if not

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012