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