Here's what rhymes with ultrapure.
pure lure poor sure cure tour nur allure jure moor ture voor cour poore boor honour assure obscure endure procure immature brochure impure unsure amour detour demure rancour spoor inure immure ensure secure mature insure manure reassure mesure coiffure paramour tonsure couture epicure premature armature demeanour dishonour succour embouchure blackamoor enamour miniature misdemeanour Words that almost rhyme with ultrapure
full pull wool bull bucketful pocketful lambswool