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