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