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