ram·bunc·tious /ræmˈbʌŋkʃəs/
  (a.)粗暴的,難控制的,騷亂的
  rambunctious
       adj : noisy and lacking in restraint or discipline; "a boisterous
             crowd"; "a social gathering that became rambunctious
             and out of hand"; "a robustious group of teenagers";
             "beneath the rumbustious surface of his paintings is
             sympathy for the vulnerability of ordinary human
             beings"; "an unruly class" [syn: boisterous, robustious,
              rumbustious, unruly]