Here's what rhymes with superffuous.
congruous exiguous Words that almost rhyme with superffuous
pursuance houmous houmus lupus humus newness fluence lulus chukkas units useless mucous fruitless mucus nuisance ruthless coolness eunuchs rudeness shrewdness smoothness aloofness hubris toothless tulips astuteness avoirdupois blueness lewdness moonless roofless rootless scrofulous bootless caduceus clueless juleps mullets gullets sublets hirsuteness ulnas tuneups students prudence foodstuffs pollutants acuteness cubits tumults crudeness obtuseness diffuseness muteness truants annuitants canoeists coolants cuteness duellists humourless intuits profuseness glumness spruceness cutups bouffants movements mutants persecutions absoluteness dissoluteness translucence abstruseness glamourous manumits jurisprudence amusements imprudence impudence disputants resoluteness inducements quadruplets irresoluteness improvements