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