backlogged

Adjective

Having an excessive list of tasks to do, especially tasks that should have already been performed.

Japanese Meaning

多数のやるべき作業が溜まり、処理が滞っている状態 / 本来既に行われるべき業務が後回しにされ、大量に未処理のまま残っている状況

The backlogged support tickets delayed the product launch by several weeks.

未処理のサポートチケットが原因で製品の発売が数週間遅れました。

Sense（1）

Having an excessive list of tasks to do, especially tasks that should have already been performed.

more backlogged

（ comparative ）

most backlogged

（ superlative ）