Here's what rhymes with negatable.
equatable Words that almost rhyme with negatable
laudable watchable probable inaudible improbable unstoppable possible cortical horrible portable constable nautical washable coracle lockable karakul particle soluble cardinal nominal plausible carnival conjugal follicle forcible adorable carbonyl chargeable corpuscle voluble exportable solvable exhaustible fontanel fordable monocle chlorophyl adoptable impossible marginal canonical doctrinal topical affordable inexhaustible enforceable implausible torsional aeronautical farcical barnacle supportable purchasable tortoiseshell importable remarkable abdominal proximal anatomical insoluble phenomenal allegorical deplorable methodical orthogonal apocryphal insupportable tetragonal unenforceable resolvable unsolvable rechargeable antiparticle insolvable revolvable nonchargeable enlargeable responsible hierarchical oratorical pronominal unremarkable oligarchical transportable nonenforceable gemological proportional irresponsible submarginal rhapsodical gemmological cosmological cytological etymological scatological seismological entomological disproportional phantasmagorical anthropological gerontological epistemological