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