actus reus, wrongful conduct, misconduct, wrongdoing - activity that transgresses moral or civil law; "he denied any wrongdoing"

juvenile delinquency, delinquency - an antisocial misdeed in violation of the law by a minor

mischief, mischief-making, devilment, roguery, shenanigan, roguishness, devilry, deviltry, mischievousness, rascality - reckless or malicious behavior that causes discomfort or annoyance in others

ruffianism - violent lawless behavior

indecorum, impropriety, familiarity, liberty - an act of undue intimacy

irregularity, abnormality - behavior that breaches the rule or etiquette or custom or morality

impropriety, indecency - an indecent or improper act

peccadillo, indiscretion - a petty misdeed

infantilism - infantile behavior in mature persons