-unconclusive-

a. Not conclusive; leading to no conclusion; not closing or settling a point in debate, or a doubtful question; as, evidence is inconclusive when it does not exhibit the truth of a disputed case in such a manner as to satisfy the mind, and put an end to debate or doubt. [ 1913 Webster ]

Arguments . . . inconclusive and impertinent. South.

-- In`con*clu"sive*ly, adv. -- In`con*clu"sive*ness, n. [ 1913 Webster ]