subject to debate, dispute, or uncertainty

whether they had been successful or not was a moot point

it is a moot point whether such a controversial scheme would have succeeded

having little or no practical relevance, typically because the subject is too uncertain to allow a decision

the whole matter is becoming increasingly moot

raise (a question or topic) for discussion; suggest (an idea or possibility)

the scheme was first mooted last October

an assembly held for debate, especially in Anglo-Saxon and medieval times

a mock judicial proceeding set up to examine a hypothetical case as an academic exercise

the object of a moot is to provide practice in developing an argument