slackly

The banner hung slackly against the wall because it wasn't tied tight enough.

(Chinese) 横幅松松垮垮地挂在墙上，因为系得不够紧。

He performed his duties slackly, showing little interest in his new responsibilities.

(Chinese) 他履行职责时慢条斯理，表现出对他新职责的冷淡。