Ingenuous rhymes with:
disingenuous, disingenuous, disingenuous, disingenuous, strenuous, continuous, disingenuous, strenuous, ambiguous, conspicuous, contiguous, continuous, disingenuous, innocuous, strenuous, vacuous
Ingenuous sounds like:
imagines, imaging, imagining, immunizing, inasmuch, incense, inching, incisions, incomes, incoming, ingenious, innocence, inocencio, insomniac, insouciance, ionizing