Gerund; denotes the act or state of overburdening.
overburdeninggerund / present participle Used attributively or predicatively to describe something that imposes an excessive burden.
The overburdening expectations from his parents made him anxious.
Чрезмерные ожидания со стороны его родителей вызывали у него тревогу.
The overburdening workload was affecting her health.
Обременительная рабочая нагрузка сказывалась на её здоровье.