moot vs debatable

moot is a noun but debatable is not a noun.

Word	Noun	Adjective	Verb	Adverb
moot	Yes	Yes	Yes	No
debatable	No	Yes	No	No

As adjectives, moot and debatable are synonyms defined as:

Other synonyms of moot include arguable, disputable.

moot (noun)	debatable (noun)
a hypothetical case that law students argue as an exercise

moot (adjective)	debatable (adjective)
open to argument or debate	capable of being disproved
of no legal significance (as having been previously decided)	open to argument or debate
	open to doubt or debate

moot (verb)	debatable (verb)
think about carefully; weigh