Polynomial rhymes with:
binomial, binomial, binomial, tramiel, wermiel, actuarial, adverbial, adversarial, advertorial, aerial, agroindustrial, alluvial, ambassadorial, anthiel, antibacterial, arboreal, ariel, arterial, asiel, aviall, axial, bacterial, biaxial, bicentennial, biennial, binomial, biomaterial, bronchial, burial, centennial, cereal, ceremonial, coaxial, collegial, colloquial, colonial, company'll, conspiratorial, convivial, correale, curatorial, custodial, decennial, dictatorial, directorial, editorial, endometrial, entrepreneurial, equatorial, ethereal, extraterrestrial, extraterritorial, filial, flonorial, fluvial, gabriel, gubernatorial, huckelby'll, immaterial, immemorial, imperial, industrial, intracranial, israel, janitorial, jovial, kalliel, kasriel, kimbriel, laryngeal, lineal, magisterial, malarial, malkiel, managerial, mariel, marsupial, material, matrilineal, matrimonial, medial, memorial, menial, mercurial, mickey'll, microbial, millennial, ministerial, morial, murial, muriel, musial, myocardial, nomenclatorial, parochial, patrilineal, perennial, pictorial, pluvial, primordial, professorial, prosecutorial, proverbial, pseudopodial, quadrennial, radial, raptorial, remedial, reportorial, sartorial, secretarial, senatorial, serial, terrestrial, territorial, testimonial, tracheal, tramiel, triennial, trivial, tutorial, venereal, vestigial, vitriol, wermiel
Polynomial sounds like:
philomela, plainly, plumlee, plumley, plymale