Here's what rhymes with spectandum.
tandem random memorandum nonrandom Words that almost rhyme with spectandum
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 gladsome stratum amalgam macadam sphagnum sanctum phantasm cytoplasm substratum neoplasm tarmacadam protoplasm enthusiasm iconoclasm