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