Here's what rhymes with refutandum.
tandem random memorandum nonrandom Words that almost rhyme with refutandum
tantum bantam abandon phantom canton dampen plantain zooplankton phytoplankton handsome datum madam ransom madame tantrum hansom transom talcum pablum maxim platinum chasm fathom spasm magnum plasm sachem stratum amalgam macadam phantasm gladsome sphagnum sanctum cytoplasm substratum neoplasm tarmacadam enthusiasm protoplasm iconoclasm