/ Dictionary / Index D delinquency: Meaning and Definition of Find definitions for: de•lin•quen•cy Pronunciation: (di-ling'kwun-sē), [key] — pl. -cies. failure in or neglect of duty or obligation; dereliction; default: delinquency in payment of dues. wrongful, illegal, or antisocial behavior. Cf. juvenile delinquency. any misdeed, offense, or misdemeanor. something, as a debt, that is past due or otherwise delinquent. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: delinquency (Thesaurus) delink delinquent 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