Bitumen rhymes with:
tooman, acumen, albumin, bumann, crewman, cumin, doman, duman, heuman, heumann, human, humann, inhuman, lewman, looman, luman, lumen, neuman, neumann, newman, newmann, nonhuman, ruman, rumen, schuhmann, schuman, schumann, shuman, subhuman, suman, superhuman, thuman, thumann, tooman, truman, tuman, vrooman, youman
Bitumen sounds like:
badami, baden, badman, baeten, baidoan, bataan, batan, bateman, batman, baton, batten, battin, batton, baudoin, baudouin, bawden, baytown, beaten, beaton, beaudin, beaudoin, bedouin, bedtime, beeton, bethany, bethune, betten, bettin, bettina, bettini, bettino, bettman, betton, between, beuthin, bhutan, bidden, biden, biotin, bitney, bitten, bittman, bitton, boatman, bodden, boden, bodin, bodine, bodman, boitano, booten, boothman, booton, botany, botham, bothun, botin, boton, botten, bottini, bottino, bottom, bottone, boudin, boudoin, boutin, bouton, bowden, bowdoin, boyden, budden, buddin, budiman, budin, budney, budny, buffton, buitoni, butane, butman, button