Words That Rhyme With "Polyonymous" :
3 syllables:
animus, bonhomous, dominance, minimus, ominous, onymous, prominence, venomous
4 syllables:
abdominous, acronymous, anonymous, antonymous, autonomous, didynamous, eponymous, equanimous, euonymus, evonymus, Hieronymus, homonymous, magnanimous, paronymous, predominance, pseudonymous, synonymous, unanimous
5 syllables:
heteronomous, heteronymous, pusillanimous