Here's what rhymes with immittendum.
referendum Words that almost rhyme with immittendum
tendon dentin intention momentum inattention indention distention hempen intervention abstention subvention supervention nonintervention contravention circumvention denim seldom venom addendum plenum bedlam jetsam phenom welcome harem vellum velum webcam envenom spectrum rectum septum cerebellum antebellum plectrum unwelcome flagellum interregnum bubblegum antiserum