unnecessary

柯林斯词典

1. ADJ If you describe something as unnecessary, you mean that it is not needed or does not have to be done. 不必要的
The slaughter of whales is unnecessary and inhuman. 对鲸的屠宰是不必要且不人道的。
2. unnecessarilyADV 不必要地
I didn't want to upset my husband or my daughter unnecessarily. 我不想不必要地让我的丈夫或女儿不开心。

This new computer system is completely unnecessary and a misuse of taxpayers ' money .
She made one or two nasty remarks about their house which I thought was a bit unnecessary.
There is still some hope that the economic blockade will work and make military intervention unnecessary.
She brought round a bunch of flowers to thank me, but it was totally unnecessary.
We need to save money and cut out all unnecessary expenses .