derelict

a. 被抛弃了的,无主的,玩忽职守的
n. 遗弃物,被遗弃的人,玩忽职守者

Several derelict cars are fished out of the canal every month.

每月都从运河里捞出几辆弃旧汽车。

Doors of derelict houses may be boarded and nailed up to prevent children from getting in.

无人居住的房子，可以用木板把门户钉起来，以防止小孩进入。