Here's what rhymes with antecessum.
Words that almost rhyme with antecessum
session cession seven heaven possession freshen profession lesson accession procession lessen obsession recession resin secession intercession leaven depression impression aggression compression discretion eleven succession concession confession oppression suppression digression dispossession expression progression regression repression indiscretion concretion transgression decompression retrogression venom harem vellum velum seldom septum antiserum denim welcome rectum antebellum addendum plenum bedlam spectrum referendum cerebellum flagellum momentum unwelcome interregnum