debatable

形容词 debatable:

1. open to doubt or debate
   同义词：problematic, problematical
2. open to argument or debate
   同义词：arguable, disputable, moot
3. capable of being disproved
   同义词：disputable

1. It's debatable whether or not the reforms have improved conditions.
   改革是否改善了现状，这问题仍有争议。

de.bat.a.ble

adj.（形容词）
Being such that formal argument or discussion is possible.
可争辩的：可导致正式争辩的或讨论的
Open to dispute; questionable.
成问题的；有疑问的
In dispute, as land or territory claimed by more than one country.
未定的，有争议的：指土地或领土由多个国家宣布主权的

【引伸】
debat.ably
adv.（副词）