Here's what rhymes with polyrhythmical.
rhythmical arrhythmical Words that almost rhyme with polyrhythmical
elliptical lyrical inimical physical critical cynical whimsical tricycle finical analytical mystical atypical rabbinical archetypical empirical cylindrical umbilical logistical uncritical apolitical encyclical preclinical subliminal parasitical untypical noncritical noncriminal metaphysical geopolitical hypocritical nonphysical nonpolitical sophistical unpolitical egoistical overcritical statistical indivisible stereotypical egotistical prototypical supercritical impermissible hypercritical psychoanalytical sociopolitical