Giamatti rhymes with:
amati, amati, amati, ammirati, andreotti, benenati, beninati, bhatti, bilotti, braggiotti, bugatti, candiotti, capriati, cotty, crotty, delligatti, diodati, donati, dottie, dotty, galati, galotti, gotti, hlavaty, jereissati, karate, kiribati, knotty, lahti, lanzelotti, liberati, literati, lottie, lotty, marathi, maserati, pavarotti, pavarotti's, pizatti, potty, rosati, salvati, scarpati, scottie, scotty, seratti, sgambati, spotty, squatty, totty, velayati, wattie
Giamatti sounds like:
gained, gamet, gamete, gamunde, gamut, ganda, gandee, gandhi, gandy, gannett, gant, gantt, ganymede, gaumond, gaunt, gauntt, gaynatie, geminate, genady, genet, gennadi, gennady, gennett, gent, gesundheit, ghandi, ghent, giacinta, giacometti, giaconda, giannetti, giannetto, giannotti, gianotti, giant, giaquinto, gigante, ginned, ginty, gionet, gismondi, giunta, gnat, gnawed, gonad, gond, gonda, gonet, gounod, gschwind, guenette, guimond, guimont, guinta, guinto, gummed, gunadi, gundy, gunned, gunty, gwenda, gwinnett, gwyneth