(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.

absonant contradictory contrary to reason fallacious faulty feeble flawed flimsy groundless illogical inauthentic incongruous inconsequent inconsequential inconsistent indecisive indefinite indeterminate insubstantial invalid irrational loose nonscientific not following not proved open paralogical poor reasonless self-annulling self-contradictory self-refuting senseless unascertained unattested unauthentic unauthenticated uncertain uncertified unconfirmed unconnected uncorroborated undemonstrated undetermined unestablished unfinished unfixed unfounded unphilosophical unproved unproven unreasonable unresolved unrigorous unscientific unsettled unshown unsound unsubstantial unsubstantiated unsupported unsupported by evidence unsustained untested untried unvalidated unverified weak without basis without grounds without reason