Fenian rhymes with:
armenian, athenian, beethovenian, slovenian, tyrrhenian, albanian, amazonian, andonian, apollinian, apollonian, argentinian, armenian, arslanian, aslanian, athenian, augustinian, babylonian, bahrainian, beethovenian, bosnian, bostonian, caledonian, carolinian, carthaginian, chechnyan, darwinian, devonian, draconian, estonian, finian, flaminian, gorgonian, houstonian, hovnanian, indianian, iranian, jacksonian, jeffersonian, jordanian, lithuanian, louisianian, mediterranean, melkonian, murnian, newtonian, o'hanian, ohanian, oregonian, orleanian, pakistanian, palestinian, panamanian, patagonian, pennsylvanian, plutonian, pomeranian, romanian, rumanian, shahinian, simonian, slovenian, smithsonian, stepanian, subramanian, subterranean, tanzanian, tasmanian, tyrrhenian, ukrainian, usoniam, vartanian, washingtonian
Fenian sounds like:
fabian, fabiani, fabiano, fabien, fahmy, fain, fama, fame, famine, fan, fane, fann, fannie, fannin, fannon, fanny, faubion, fauna, fawn, fayanne, fayme, fayne, feehan, feeney, feeny, fehn, fein, feinman, fema, femia, femina, feminine, femme, fen, fenn, fennema, fenney, fenno, fenway, feyen, feynman, fianna, fiene, fima, fin, fina, finan, fine, fineman, fini, finian, finn, finnan, finne, finney, finnie, fino, fiona, fm, foam, foamy, fomon, fone, foppiano, fume, fumi, fumio, fun, funny