failing in or neglectful of a duty or obligation; guilty of a misdeed or offense.

(of an account, tax, debt, etc.) past due; overdue.

of or pertaining to delinquents or delinquency

delinquent attitudes.

a person who is delinquent.

juvenile delinquent.

adjective

behaving , careful , responsible

adjective

behind , blamable , blameworthy , careless , censurable , criminal , culpable , defaultant , derelict , disregardful , faulty , guilty , lax , neglectful , negligent , offending , overdue , procrastinating , red-handed * , remiss , reprehensible , shabby , slack , tardy , unpaid

noun

behind , blackguard , black sheep * , culprit , dawdler , deadbeat * , deadhead , debtor , defaulter , derelict , desperado , evader , fallen angel , felon , hoodlum * , jailbird , jd , juvenile delinquent , juvie , lawbreaker , loafer , lounger , malefactor , miscreant , neglecter , no show , offender , outlaw , punk * , recreant , reprobate , sinner , wrongdoer , young offender , criminal , hoodlum , irresponsible , late , lax , negligent , overdue , punk , remiss , tardy