Prodigious rhymes with:
litigious, nonreligious, prestigious, religious, semireligious, advantageous, aegis, burgess, contagious, courageous, danjus, disadvantageous, egregious, gorgeous, largess, litigious, nonreligious, outrageous, prestigious, religious, semireligious, tejas
Prodigious sounds like:
parades, paradis, paradise, paradiso, paradowski, paradox, paradoxes, pardus, paredes, paredez, paredis, parities, parodies, parretti's, parrots, part's, partake, partch, parties, parties', parts, parts', party's, partyka, pavarotti's, pepperidge, peratis, peratis', peretz, period's, periodic, periods, perot's, perots, peroutka, pertschuk, pertussis, pirate's, pirates, pirouettes, porridge, port's, portage, portec, portec's, porteous, portico, portis, ports, portuguese, portz, pradesh, prats, pratt's, predaceous, predates, pretax, pretties, prideaux, prides, priorities, prioritize, prioritizes, pritts, pritz, prodi's, prodigies, prodigy, prodigy's, prods, produc, produce, produces, protease, protege, proteges, protozoa, protz, prudish