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