Definition of delinquent:
(adj) :
Late or failing to pay a
debt or other financial obligation, like a mortgage or loan
"fred is delinquent in making his car payment."
(n) :
one who
disobeys or
breaks rules or
laws; a term applied to
royalists by their opponents in the English Civil War 1642 - 1645. Charles I was known as the chief delinquent