noun
rowdiness; rowdy person; rowdy event
Refers to boisterous, unruly behavior or a person/event characterized by such behavior. Often used in casual or colloquial contexts.
あの子は本当に悪たれで、いつも騒いでいる。
That kid is a real rowdy one, always making a racket.
昨夜のパーティーは悪たればかりだった。
Last night's party was nothing but rowdiness.