the fact of continuing to try to do something despite difficulties, especially when other people are against you and think that you are being annoying or unreasonable
پافشاری, اصرار, پایداری, سماجت, پایمردی, استقامت, ثبات قدم
2
the state of continuing to exist for a long period of time
ماندگاری, دوام, استمرار
the persistence of unemployment in the 1970s and 1980s