"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"
牛津高阶第八版
美国韦氏词典
Dictionary.com
Free Dictionary
维基百科 (自由的百科全书)