puerile
adj. 幼稚的;孩子气的;未成熟的;天真的
例句
Concert organizers branded the group's actions as puerile.
演唱会举办方谴责了该乐团的幼稚行为。
《柯林斯英汉双解大词典》
She was tired of answering these puerile questions.
她回答这些幼稚的问题觉得不胜其烦。
The first is a group of puerile men in their mid-20s.
第一个团体是由一群幼稚的二十五六岁的男性组成。