THESAURUS
past due
ahead of time, anachronistic, antedated, beforehand, behind time, behindhand, dated, early, foredated, late, metachronistic, misdated, mistimed, out of date, out of season, overdue, parachronistic, postdated, prochronistic, tardy, unpunctual, unseasonable
ROGET THESAURUS
past due
Anachronism
N
anachronism, metachronism, parachronism, prochronism, prolepsis, misdate, anticipation, antichronism, disregard of time, neglect of time, oblivion of time, intempestivity, misdated, undated, overdue,
past due, out of date.
Debt
N
debt, obligation, liability, indebtment, debit, score, bill, check, account (credit), arrears, deferred payment, deficit, default, insolvency, bad debt, interest, premium, usance, usury, floating debt, floating capital, debtor, debitor, mortgagor, defaulter, borrower, indebted, liable, chargeable, answerable for, in debt, in embarrassed circumstances, in difficulties, incumbered, involved, involved in debt, plunged in debt, deep in debt, over one's head in debt, over head and ears in debt, deeply involved, fast tied up, insolvent, minus, out of pocket, unpaid, unrequited, unrewarded, owing, due, in arrear, outstanding,
past due, aes alienum debitorem leve gravius inimicum facit, neither a borrower nor a lender be.