unneeded

We can throw away those unneeded boxes.

用法提示：形容词“unneeded”修饰名词“boxes”，表示“不需要的”。

She turned off the unneeded lights to save electricity.

用法提示：“unneeded”作定语修饰“lights”，说明这些灯是多余的。

The report was full of unneeded details.

用法提示：形容词“unneeded”作定语，强调细节是不必要的。