Here's what rhymes with cumulating.
                        
                        
                    
                                rating  relating  waiting  awaiting  dating  mating  accumulating  grating  plating  weighting  hating  baiting  emulating  gating  abating  collating  plaiting  creating  regulating  stating  debating  elevating  insulating  irritating  isolating  undulating  updating  allocating  lubricating  modulating  oscillating  simulating  skating  annihilating  bleating  dilating  irrigating  narrating  mutilating  urinating  operating  indicating  alternating  calculating  circulating  stimulating  illuminating  illustrating  integrating  translating  celebrating  educating  emanating  formulating  imitating  liberating  mediating  motivating  radiating  aggravating  agitating  alienating  alleviating  animating  equating  escalating  meditating  mitigating  navigating  nominating  validating  aggregating  delegating  emigrating  incubating  intimating  moderating  negating  recreating  tolerating  vacillating  ventilating  automating  coagulating  deflating  desolating  enervating  inflating  innovating  inoculating  nauseating  percolating  prostrating  relegating  renovating  resonating  restating  ruminating  tabulating  communicating  fascinating  generating  penetrating  separating  advocating  cultivating  dominating  eliminating  estimating  initiating  originating  accelerating  activating  appreciating  associating  complicating  culminating  graduating  humiliating  manipulating  propagating  terminating  articulating  assimilating  collaborating  decorating  elaborating  hesitating  officiating  speculating  suffocating  ameliorating  deprecating  deviating  dissipating  duplicating  elucidating  enumerating  eradicating  germinating  implicating  interrogating  legislating  obliterating  perforating  permeating  postulating  reiterating  replicating  saturating  stipulating  vindicating  actuating  amalgamating  antedating  attenuating  consecrating  corroborating  denigrating  fulminating  hibernating  inaugurating  infuriating  instigating  interpolating  invalidating  masturbating  obviating  perpetrating  promulgating  recirculating  scintillating  situating  supplicating  undeviating  evaluating  concentrating  contemplating  devastating  facilitating  incorporating  negotiating  accommodating  anticipating  compensating  cooperating  coordinating  fluctuating  appropriating  commemorating  congratulating  consolidating  debilitating  evaporating  exhilarating  invigorating  proliferating  reciprocating  regenerating  conciliating  dedicating  deliberating  delineating  evacuating  excavating  fabricating  incriminating  legitimating  liquidating  refrigerating  repudiating  segregating  accentuating  adjudicating  authenticating  confiscating  electroplating  emancipating  encapsulating  enunciating  explicating  extricating  gravitating  impersonating  ingratiating  menstruating  recuperating  reinstating  remonstrating  reverberating  subjugating  demonstrating  participating  investigating  deteriorating  discriminating  precipitating  approximating  captivating  designating  disintegrating  disseminating  exaggerating  intimidating  necessitating  perpetuating  predominating  contaminating  degenerating  exterminating  subordinating  depreciating  dissociating  exacerbating  extenuating  extrapolating  inactivating  rehabilitating  unhesitating  differentiating  intoxicating  excruciating  exasperating  incapacitating  preponderating  underestimating  substantiating  Words that almost rhyme with cumulating
raging  lading  raiding  raping  trading  shaping  fading  grading  gaping  shading  wading  waging  gauging  paging  taping  braiding  draping  staging  pervading  scraping  upgrading  evading  blockading  parading  reshaping  upbraiding  engaging  escaping  invading  degrading  persuading  cascading  crusading  masquerading  downgrading  disengaging  raising  laying  racing  railing  raining  reigning  raking  raving  allaying  making  taking  saying  training  breaking  painting  playing  facing  paying  placing  ranging  saving  amazing  claiming  failing  gaining  naming  praying  sailing  shaking  weighing  attaining  baking  bathing  blazing  framing  gazing  grazing  tracing  waking  wasting  waving  basing  blaming  bracing  casing  chasing  craving  draining  fainting  flaming  gaming  mailing  pacing  paving  praising  shaving  tasting  trailing  wailing  waning  appraising  braking  glazing  phrasing  slaying  whaling  assailing  availing  awaking  chafing  chaining  erasing  feigning  flaking  hailing  nailing  pasting  phasing  plaything  preying  tailing  taming  veiling  assaying  bailing  basting  baying  braving  braying  caving  craning  faking  flailing  graying  haying  hazing  maiming  neighing  plaguing  shaming  waiving  changing  remaining  obtaining  pertaining  replacing  retaining  staying  arranging  scaling  spacing  staining  surveying  decaying  delaying  obeying  spraying  straining  swaying  partaking  regaining  retraining  scathing  unfailing  acquainting  curtailing  effacing  interlacing  quaking  reclaiming  refraining  remaking  renaming  repaying  staking  straying  unveiling  buffeting  ordaining  retracing  revelling  strafing  containing  maintaining  prevailing  undertaking  complaining  conveying  embracing  engraving  entertaining  modelling  sustaining  ascertaining  behaving  betraying  campaigning  detailing  proclaiming  restraining  unchanging  appertaining  mistaking  portraying  unavailing  abstaining  debasing  detaining  entailing  forsaking  inhaling  overtaking  paraphrasing  rearranging  bewailing  declaiming  defraying  inflaming  overgrazing  explaining  displaying  constraining  countervailing  displacing  exclaiming  mainspring  remodelling  denaturing  disclaiming  disdaining  interchanging  uncomplaining  exchanging  disobeying