This is the 8492nd most frequent Russian word.
нижестоящие
"Нижестоящие" means "subordinates" or "those lower in rank or position."
Here, "нижестоящие" is an adjective used to describe employees or staff of a lower hierarchical position.
Нижестоящие сотрудники собрались в конференц-зале.
The lower-ranking staff gathered in the conference room.
"Нижестоящие" modifies "руководителями," indicating managers of a lower rank.
Отчет должен быть утвержден нижестоящими руководителями.
The report must be approved by the lower-level managers.
The word "нижестоящие" functions as an adjective characterizing departments with less hierarchical authority.