over·due 
/ˌoʊvɚˈdu:, Brit ˌəʊvəˈdju:/ adjective
/ˌoʊvɚˈdu:, Brit ˌəʊvəˈdju:/ adjective 1 : not paid at an expected or required time
▪ She reminded him that the rent was overdue. ▪ He has many overdue bills. 2 : not appearing or presented by a stated, expected, or required time
▪ The train is 10 minutes overdue. ▪ Her baby is overdue by one week. [=her baby has not been born yet and it is a week since its birth was expected] ▪ an overdue library book 3 — used to say that something should have happened or been done before now ▪ His promotion is long overdue. = He is long overdue for a promotion. [=he should have been given a promotion by now] ▪ Repairs on that building are long overdue.
▪ She reminded him that the rent was overdue. ▪ He has many overdue bills.
▪ The train is 10 minutes overdue. ▪ Her baby is overdue by one week. [=her baby has not been born yet and it is a week since its birth was expected] ▪ an overdue library book
