puerile [ˈpjʊəraɪl]

以下由轻松背单词网站提供

adj.幼稚的，儿童的

behaving in a silly way, not like an adult

The story is simple, even puerile. 故事很简单，甚至有些幼稚。
Concert organisers branded the group's actions as puerile. 音乐会的组织者指称该乐队的行为愚蠢幼稚。