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