Here's what rhymes with overbelieving.
                        
                        
                    
                                leaving  riving  reeving  believing  achieving  perceiving  weaving  grieving  heaving  cleaving  thieving  aggrieving  sheaving  peeving  receiving  relieving  deceiving  unbelieving  interleaving  bereaving  overachieving  conceiving  retrieving  interweaving  disbelieving  reprieving  underachieving  undeceiving  preconceiving  misconceiving  Words that almost rhyme with overbelieving
leasing  policing  leafing  fertilising  wreathing  reefing  verbalising  leashing  breathing  freezing  pleasing  seizing  ceasing  teasing  briefing  seething  sheathing  wheezing  appeasing  creasing  piecing  teething  unleashing  greasing  fleecing  phishing  beefing  breezing  vitalising  subleasing  urbanising  vicing  idolising  decreasing  releasing  realising  unceasing  debriefing  sneezing  utilising  bequeathing  civilising  mobilising  unpleasing  socialising  symbolising  idealising  unfreezing  finalising  fraternising  penalising  subfreezing  tyrannising  channelising  deceasing  vocalising  federalising  vandalising  fossilising  iodising  stylising  surceasing  increasing  squeezing  displeasing  modernising  specialising  stabilising  apologising  centralising  generalising  moralising  neutralising  rationalising  tantalising  energising  globalising  liberalising  localising  monopolising  nationalising  sterilising  visualising  brutalising  evangelising  formalising  legalising  naturalising  refreezing  revitalising  unsheathing  anodising  fantasising  immobilising  metabolising  personalising  scandalising  feminising  signalising  volatilising  cannibalising  devitalising  pluralising  serialising  alkalising  analogising  overgeneralising  routinising  emotionalising  nasalising  novelising  palatalising  organising  emphasising  demoralising  equalising  scrutinising  humanising  normalising  synthesising  actualising  capitalising  eulogising  externalising  internalising  materialising  canalising  hypothesising  immortalising  immunising  mechanising  mythologising  predeceasing  radicalising  solemnising  trivialising  vulcanising  commercialising  demobilising  initialising  nonfreezing  overemphasising  fictionalising  rhapsodising  westernising  hospitalising  recognising  destabilising  decentralising  galvanising  homogenising  marginalising  universalising  criminalising  denationalising  depersonalising  memorialising  womanising  editorialising  marbleizing  metastasising  anthologising  reorganising  conceptualising  dehumanising  disorganising  individualising  attitudinising  professionalising  sentimentalising  sensationalising  recapitalising  industrialising  internationalising  intellectualising  photosynthesising  conventionalising  decriminalising  pedestrianising  institutionalising  contextualising  departmentalising  compartmentalising  leading  reaching  leaning  leaping  leaching  leaking  reaping  reeling  reeking  reviling  wreaking  reaming  leeching  leaguing  being  feeling  meaning  meeting  teaching  dealing  hearing  keeping  seeing  seeking  bleeding  feeding  healing  heating  preaching  sleeping  treating  appealing  beating  breeding  ceiling  cleaning  seeming  yielding  agreeing  creeping  dreaming  greeting  kneeling  needing  pleading  weeping  annealing  cheating  fleeing  fleeting  freeing  gleaming  peering  sealing  seating  beaming  bleaching  creaking  deleting  peeling  peeping  seeding  shrieking  teeming  weaning  weeding  wheeling  ceding  deeming  heaping  heeding  jeering  keying  kneading  peaking  seeping  sheeting  beading  breaching  gleaning  greening  pealing  peeking  teaming  creaming  freaking  heeling  keening  preening  beaching  beeping  peeing  seaming  cheeping  chinning  deeding  teeing  weening  bleeping  cheeking  keeling  perilling  piquing  sleeting  treeing  unreeling  chivvying  hieing  kneeing  retying  sleeking  uprearing  valeting  beaning  chivying  geeing  weeing  pieing  speaking  proceeding  repeating  revealing  screening  sweeping  screaming  stealing  streaming  defeating  receding  redeeming  shielding  speeding  steaming  besieging  fatiguing  feasting  machining  scheming  secreting  seedling  skiing  sneaking  unyielding  wielding  beseeching  demeaning  depleting  repealing  rereading  screeching  superseding  unfeeling  unmeaning  unreasoning  unvarying  acceding  careening  decreeing  defiling  fielding  needling  overreaching  rehearing  reheating  steeping  streaking  unseeing  weakling  beetling  esteeming  strewing  striping  supervening  tweaking  untying  wheedling  reseeding  steeling  unseating  beseeming  crisping  faceting  relining  resealing  reteaching  sidelining  unsealing  oversleeping  queening  refiling  spiting  phantasying  pureeing  skying  weaseling  mitring  obsoleting  restring  spieling  tweeting  chagrining  rosining  preceding  competing  completing  exceeding  intervening  misleading  succeeding  intriguing  concealing  retreating  conceding  endearing  overseeing  convening  disagreeing  entreating  foreseeing  impeding  inbreeding  misreading  overeating  overheating  overweening  sightseeing  squeaking  squealing  critiquing  imbibing  interbreeding  overhearing  preheating  seceding  unappealing  bespeaking  calcining  concreting  congealing  impeaching  interceding  maltreating  overfeeding  stampeding  farseeing  refereeing  underfeeding  leafleting  pinwheeling  reburying  receipting  bestrewing  emceeing  nonyielding  alibiing  safekeeping  crossbreeding  excreting  imperilling  mistreating  cartwheeling  guillotining  squeegeeing  trampolining  hosteling  misspeaking  disesteeming  misdealing  guaranteeing  inveigling  reconvening  nonspeaking  silkscreening  calcimining  garnisheeing  fricasseeing  noncompeting  quarantining