Synonyms to unproven

groundless, baseless, bottomless, built on sand, chimerical, empty, flimsy, gratuitous, hypothetical, idle, ill-founded, illusory, imaginary, inconclusive, indecisive, not following, not proved, not well-founded, speculative, suppositional, tenuous, unascertained, unattested, unauthenticated, unbased, uncalled-for, uncertified, unconfirmed, uncorroborated, undemonstrated, undetermined, unestablished, unfixed, unfounded, ungrounded, unjustifiable, unjustified, unproved, unreasonable, unsettled, unshown, unsound, unsubstantiated, unsupportable, unsupported, unsupported by evidence, unsustainable, unsustained, untenable, untested, untried, unvalidated, unverified, unwarranted, vain, without basis, without foundation, without grounds, absonant, contradictory, contrary to reason, fallacious, faulty, feeble, flawed, illogical, inauthentic, incongruous, inconsequent, inconsequential, inconsistent, indefinite, indeterminate, insubstantial, invalid, irrational, loose, nonscientific, open, paralogical, poor, reasonless, self