dispensable

In the modern digital age, paper maps have become largely dispensable for travelers.

(Chinese) 在现代数字时代，纸质地图对旅行者来说在很大程度上已变得可有可无。

The manager realized that the expensive software was dispensable and canceled the subscription.

(Chinese) 经理意识到那款昂贵的软件并非必需，于是取消了订阅。