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