Definitions of moot case
a case that has already been resolved by a court, or a fictional case, especially one used during a moot court to test or practice students' or lawyers' advocacy skills
The moot case we've been given is similar to one I've already studied, so I think we could do quite well.
a case that involves the discussion of a fact or right that is not recognized by law
Johnson ruled that recent legislation rendered the lawsuit a moot case.