Here's what rhymes with volantum.
                        
                        
                    
                                quantum  Words that almost rhyme with volantum
wanton  condom  wampum  bonbon  bottom  mortem  bonum  rostrum  problem  column  solemn  blossom  forum  balsam  dorsum  sorghum  drachm  nostrum  flotsam  opossum  possum  foursome  slalom  carom  boredom  quorum  metronome  thraldom  thralldom  cockscomb  gastronome  decorum  postpartum  stardom  sugarplum  falciparum  microcosm  macrocosm