adj.

1. noisy and lacking in restraint or discipline;
   rambunctious, robustious, rumbustious, unruly
   
   • 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
2. full of rough and exuberant animal spirits;
   knockabout
   
   • boisterous practical jokes
   • knockabout comedy
3. violently agitated and turbulent;
   fierce, rough
   
   • boisterous winds and waves
   • the fierce thunders roar me their music"- Ezra Pound; "rough weather
   • rough seas