Akademik

nonpayment
I noun bad debt, balance due, default, deferred payment, delinquency, dishonor, dishonored bill, evasion, failure, failure to pay, lapse, neglect, outstanding debt, oversight, refusal to pay, repudiation, unpaid dues associated concepts: nonpayment of rent II index debt, delinquency (shortage)

Burton's Legal Thesaurus. . 2006