busiest

/ˈbɪziːst/
extremely or excessively busy "The city center is always the busiest place on weekends."

adjective [最高级]最忙的(busy 的最高级形式)

It'll have to wait. This is our busiest time.
不得不等一等。这是我们最繁忙的时候。

单词造句:
网友用“Busiest”造句精选
This is one of the busiest times of the year for the department. 这是系里一年中最忙的时间。
October is usually the busiest month in the academic calendar. 十月通常是校历上最忙的一个月。