It's a simple term that encapsulates the fact that relationships at work can reasonably be non-intimate, inconsequential, unimportant and even, dare I say it, disposable or substitutable.
2019年6月六级真题(第三套)阅读 Section C
柯林斯高阶英汉双解学习词典释义
ADJ-GRADED
不重要的;微不足道的;细琐的
Something that is inconsequential is not important.