adj.无意义的，无目标的，不值得做的

It is a pointless arguments.
这是一个无意义的的争论。
Life just seemed pointless to him.
生活对我来说简直没什么意义。
Still, arguing with me was pointless.
然而， 和我争吵无意义
The meeting was completely pointless; we didn't accomplish anything meaningful.
这次会议完全没有意义，我们没有达成任何有意义的事情。
Arguing with him is pointless; he never changes his mind.
跟他争论是毫无意义的；他从不改变主意。
Running in circles might be tiring, but it's utterly pointless.
跑圈可能会很累，但完全是徒劳无功。
Collecting every single item in the game feels pointless to me.
收集游戏中的每一件物品对我来说毫无意义。
It's pointless to worry about things you can't control.
担心你无法控制的事情是没有意义的。
The debate went on for hours, but in the end, it proved pointless.
辩论持续了几个小时，但最终证明是毫无意义的。
Buying expensive clothes just to impress others seems pointless to me.
为了给别人留下深刻印象而买昂贵的衣服在我看来毫无意义。
Continuing this project without proper funding is pointless.
在没有适当资金的情况下继续这个项目是没有意义的。
Trying to reason with her when she's angry is pointless; she won't listen.
她生气时试图跟她讲道理是没有用的；她不会听的。
Repairing this old device is pointless – it would cost more than buying a new one.
修理这个旧设备是没有意义的——它比买一个新的还要贵。