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