Here's what rhymes with admittendum.
referendum Words that almost rhyme with admittendum
tendon dentin intention momentum indention distention inattention abstention hempen intervention 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