disuse

废弃、不再使用、闲置

The old railway station fell into disuse after the new line opened.

新路线通车后，那座旧火车站就废弃不用了。

退化、衰退

Her language skills weakened through years of disuse.

她的语言能力因多年没用而退化了。

停止使用、废止罕用

Several of these regulations were quietly disused decades ago.

其中几项规定在数十年前就悄悄废止了。