sine die
adverb /ˌsaɪni ˈdaɪiː/,  /ˌsɪneɪ ˈdiːeɪ/
  /ˌsaɪni ˈdaɪiː/,  /ˌsɪneɪ ˈdiːeɪ/
(from Latin, formal, law)- without a future date being arranged
- The case was adjourned sine die.
 
Oxford Collocations DictionarySine die is used with these verbs:- adjourn
 
Word OriginLatin, literally ‘without a day’.