A rambunctious person is energetic in a cheerful, noisy way.
例句
...a very rambunctious and energetic class.極其喧鬧活躍的課堂
英漢詞典釋義
adj.
<美><口>粗暴的;喧鬧的
Their rambunctious son always got into trouble.他們那個不受管束的兒子老是惹麻煩。
英英詞典釋義
Adjective
1. 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"