delinquency; misconduct; delinquent behavior
Refers to juvenile delinquency or general misbehavior, often in legal or educational contexts.
He was taken into custody for delinquent behavior.
Misconduct is strictly punished at school.
非行 is a broader term for delinquency or wrongdoing, while 不良行為 often implies a legal or official categorization of juvenile misbehavior.
不良 can mean 'delinquent' as a noun or 'bad' as an adjective, but 不良行為 specifically refers to the act or behavior itself.
juvenile delinquent
Compound of 不良 (bad, delinquent) and 行為 (act, conduct).