'Debatable' definitions:

Definition of 'debatable'

(from WordNet)
adjective
Open to doubt or debate; "If you ever get married, which seems to be extremely problematic" [syn: debatable, problematic, problematical]
adjective
Open to argument or debate; "that is a moot question" [syn: arguable, debatable, disputable, moot]
adjective
Capable of being disproved [syn: debatable, disputable]

Definition of 'Debatable'

From: GCIDE
  • Debatable \De*bat"a*ble\, a. [Cf. OF. debatable. See Debate.] Liable to be debated; disputable; subject to controversy or contention; open to question or dispute; as, a debatable question. [1913 Webster]
  • The Debatable Land or or Ground, a tract of land between the Esk and the Sark, claimed by both England and Scotland; the Batable Ground. [1913 Webster]