Adjective: boisterous boy-st(u-)rus
- Noisy and lacking in restraint or discipline
"a boisterous crowd";
- rambunctious [N. Amer], robustious [archaic], rumbustious [Brit], unruly
- Full of rough and exuberant animal spirits
"boisterous practical jokes";
- knockabout
- Violently agitated and turbulent
"boisterous winds and waves";
- fierce, rough
See also: disorderly, procellous [archaic], spirited, stormy