WordNet (r) 3.0 (2006):

disorderly conduct
    n 1: any act of molesting, interrupting, hindering, agitating,
         or arousing from a state of repose or otherwise depriving
         inhabitants of the peace and quiet to which they are
         entitled [syn: disorderly conduct, disorderly behavior,
         disturbance of the peace, breach of the peace]

Moby Thesaurus II by Grady Ward, 1.0:

24 Moby Thesaurus words for "disorderly conduct":
   badness, discourtesy, disorder, disorderliness, disruption,
   disruptiveness, frowned-upon behavior, hooliganism, horseplay,
   impropriety, misbehavior, misconduct, misdemeanor, misdoing,
   naughtiness, nonsanctioned behavior, roughhouse, rowdiness,
   rowdyism, ruffianism, vandalism, venial sin, vice, wrongdoing