long-standing
adjective /ˌlɒŋ ˈstændɪŋ/
/ˌlɔːŋ ˈstændɪŋ/
[usually before noun]- that has existed or lasted for a long time
- a long-standing relationship
- Long-standing grievances were aired at the meeting.
- The country’s long-standing relationship with the US was finally under strain.
Oxford Collocations DictionaryLong-standing is used with these nouns:- advocate
- ambition
- animosity
- …