Here's what rhymes with praeexistentibus.
                        
                        
                    
                                Words that almost rhyme with praeexistentibus
tenseness  denseness  attentiveness  pensiveness  caribous  effectiveness  inventiveness  penitence  reticence  extensiveness  restiveness  celibates  inattentiveness  intensiveness  retentiveness  devilishness  scarceness  bearishness  festiveness  selfishness  defensiveness  suggestiveness  defectiveness  offensiveness  perceptiveness  receptiveness  contentedness  deceptiveness  expensiveness  fetishists  objectiveness  garishness  hellishness  residence  connectedness  expressiveness  ineffectiveness  impressiveness  possessiveness  headmistress  oppressiveness  protectiveness  unexpectedness  hesitance  obsessiveness  inexpensiveness  inoffensiveness  residents  aggressiveness  unselfishness  apprehensiveness  collectivists  disconnectedness  repressiveness  embellishments  progressiveness  comprehensiveness  counterintelligence