1 Syllablelouvre, lucre
Now you can make multisyllabic rhymes in the new rhymit app :)
2 Syllablesbloomer, boomer, booster, brooder, bruiser, cooler, cooper, cougar, cruiser, foumart, fruiter, goober, grouper, hooper, hooter, hoover, juicer, loser, louver, lunar, mover, neuter, roofer, roomer, rooster, rooter, ruler, rumour, schooner, scooter, shooter, steward, suitor, super, suture, trooper, tuber, tudor, tuner, tutor
3 Syllablesaccoutred, consumer, coopered, freebooter, improver, intruder, involucre, louvered, manoeuvre, mosstrooper, neutered, peashooter, producer, remover, sewered, sublunar, super-god, superad, superadd, superdad, supered, superfad, supergod, superted, sutured, tuberoid, tutelar, tutored, tutorhod
4 Syllablesinvolucred, paratrooper, untutored