无意义的（形容词）

(adjective) Describing something that lacks purpose or meaning; futile.

EXAMPLE: My stubborn business partners insist on long, pointless arguments about even the smallest details of our business, a practice which wastes a lot of time.

我那顽固的商业伙伴总是对我们的业务发表无意义的长篇大论，哪怕是最微小的细节也不放过，这么做浪费了大量的时间。