Unable rhymes with:
enable, knable, abel, abell, able, cable, chaebol, crable, disable, enable, fable, frable, gable, grable, graybeal, hable, intercable, kable, knable, label, laible, mabel, mable, mislabel, raible, relabel, sable, schaible, stable, table, unstable, waibel, zabel
Unable sounds like:
umbel, umble, unemploy, unenviable, unhappily, unifil, unpayable, unveil, unwinnable