debatable
adjective uk/dɪˈbeɪ.tə.bəl/ us/dɪˈbeɪ.t̬ə.bəl/
有争议的，不确定的;成问题的
not clear or certain because different people may have different opinions
[ + question word ] It's debatable whether a university degree helps at all. 大学学位是否有用是一个有争议的话题。
The value of some of the experiments is debatable. 有些实验的价值还有待确定。