overdue
I
adjective
behind time, belated, debitus, delayed, delinquent, due, in arrears, late, long-delayed, more than due, not on time, outstanding, past due, past the time for payment, remiss, tardy, unpaid, untimely
II
index
back (in arrears), dilatory, late (tardy), outstanding (unpaid), past due
Burton's Legal Thesaurus.
William C. Burton.
2006