/ Thesaurus / I Synonyms of in arrears Find synonyms for: Adverb1. behind, behindhand, in arrearsusage: in debt; "he fell behind with his mortgage payments"; "a month behind in the rent"; "a company that has been run behindhand for years"; "in arrears with their utility bills"WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: gregarious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language