in arrears Definition

arrears
plural noun

1. An amount or quantity which still needs to be done or paid back.

Thesaurus: unpaid debt, outstanding debt, deficit, balance due, back payments, unfinished work, obligations.

Idiom: in arrears

Late in paying money that is owed, in doing the required work, or in meeting some obligation.

In a state of having the agreed, usually monthly, repayments overdue.

Etymology: 17c: from French arere, from Latin ad to + retro back, behind.