[adjective] [+ wh- word] - not clear, not certain, not fixed; possibly not trueIt's debatable whether that is what was originally intended.I agreed with their first choice but the second choice was slightly more debatable. [+ wh- word]The value of some of the experiments is debatable.
DEBATABLE
Meaning of DEBATABLE in English
Cambridge English vocab. Кембриджский английский словарь. 2012