contestable

indisputable, irrefutable, undeniable, uncontestable, unarguable, inarguable, indubitable, undisputable, incontrovertible, arguable, inescapable, axiomatic, unquestionable, immutable, unexceptionable, preponderant, ineluctable, controverted, unequivocal, justificatory, ex cathedra, syllogistic, undisputed, unambiguous, debatable, inferable, perspicuous, reducible, specious, unchangeable, tenable, de jure, indispensable, indefeasible, explicable, ineradicable, undebatable, determinative, ipse dixit, uncaused, fallacious, unsurpassable, assailable, unimpeachable, indivisible, insupportable, categorical imperative, locus classicus, obvious, incommensurable, unchallengeable, dispositive, insuperable, irreducible, justiciable, reformable, rebuttable, imperative, inextricable, inalterable, paradoxical, unreasoned, perfectible, primus inter pares, inerrant, ipso facto, pyrrhic, priori, implicit, nugatory, inapplicable, fortiori, coextensive, unreformable, fundamental, posteriori, unalterable, abnegating, ponderable, refutable, logical fallacy, inexorable, juridical, epistemic, invariable, cannot, disputable, penological, inconceivable, res ipsa loquitur, valid, evident, tu quoque, undeviating, implacable, plausible, specious argument, spurious, juristic, facie, purblind, infallible, undoubted, incontestible, unassailable, irrefragable, apodictic, unquestioned, convincing, selfevident, conclusive, corroborative, acknowledged

demonstrable, demonstrated, ironclad, unanswerable, unshakable, watertight