Nonroman rhymes with:
broman, dromon, frohman, froman, greco-roman, grohman, groman, rohman, roman, romann, strohman, stroman, vroman
Nonroman sounds like:
nairn, nairne, narayan, narayanan, naron, narron, narum, nerine, nerney, nerone, nerren, nierman, noreen, norem, noren, norm, norma, norman, normie, normy, norna, norwin, norwyn, nurmi