不要

In a sentence

• この書類はもう不要です。

  This document is no longer necessary.

  In this sentence, '不要' means 'not necessary' or 'unneeded', indicating that the document is no longer required.

• 不要な物は捨てましょう。

  Let's dispose of unnecessary items.

  Here, '不要な' describes items that are not needed or lacking utility, suggesting action to declutter.

• 彼の説明は不要だったと思います。

  I think his explanation was unnecessary.

  In this context, '不要' is used to express that something, in this case the explanation, was not required or superfluous.