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