Here's what rhymes with deacceleration.
                        
                        
                    
                                acceleration  nation  separation  variation  elevation  irrigation  federation  veneration  iteration  aeration  exhilaration  education  operation  relation  situation  creation  formation  generation  location  station  declaration  exploration  innovation  liberation  rotation  salvation  sensation  allocation  alteration  celebration  decoration  delegation  hesitation  imitation  irritation  saturation  segregation  simulation  vegetation  affiliation  cessation  derivation  dilatation  negation  toleration  validation  aberration  adoration  allegation  emulation  innervation  oration  reparation  sedation  summation  ulceration  visitation  ablation  coloration  deceleration  elation  emanation  information  application  consideration  explanation  circulation  cooperation  corporation  duration  foundation  occupation  preparation  radiation  regulation  reputation  admiration  configuration  correlation  illustration  immigration  indication  inspiration  isolation  obligation  realization  restoration  revelation  stimulation  taxation  violation  agitation  alienation  aspiration  assimilation  degradation  dissertation  estimation  fixation  implication  inclination  inflammation  medication  meditation  notation  oxidation  plantation  recreation  reservation  respiration  speculation  temptation  vacation  valuation  ventilation  vibration  accusation  affirmation  aggregation  animation  approbation  aviation  causation  dedication  deprivation  desolation  desperation  elaboration  emigration  evaporation  exaggeration  expiration  fascination  filtration  habitation  insulation  litigation  maturation  moderation  mutation  narration  ordination  oscillation  probation  reformation  replication  starvation  verification  vocation  affectation  alternation  appellation  augmentation  automation  bifurcation  citation  conciliation  confederation  coronation  damnation  deputation  divination  donation  escalation  exaltation  exclamation  exhortation  fibrillation  gestation  hydration  imputation  inhalation  intimation  invocation  ovulation  perforation  recitation  reclamation  renovation  revocation  sanitation  stipulation  usurpation  population  combination  examination  association  civilization  conversation  evaluation  integration  legislation  observation  translation  activation  adaptation  calculation  conservation  deviation  expectation  exploitation  formulation  inflation  invitation  limitation  migration  motivation  preservation  anticipation  collaboration  computation  confirmation  congregation  consolidation  consultation  coordination  deformation  degeneration  designation  destination  deterioration  domination  elimination  excitation  frustration  illumination  initiation  installation  navigation  nomination  penetration  proclamation  propagation  quotation  regeneration  relaxation  resignation  termination  annexation  annihilation  assassination  attenuation  authorization  calibration  civilisation  clarification  coagulation  compilation  complication  consolation  deliberation  dissemination  dissipation  distillation  evacuation  excavation  fabrication  fermentation  graduation  humiliation  importation  incubation  ionization  irradiation  mediation  modulation  polarization  preoccupation  realisation  retardation  specialization  amputation  authentication  cancellation  capitulation  castration  conformation  connotation  consummation  culmination  devastation  elongation  elucidation  enumeration  eradication  exportation  germination  immunization  inauguration  interrogation  intonation  perspiration  perturbation  provocation  refrigeration  refutation  relocation  segmentation  stagnation  sterilization  subjugation  vaccination  vindication  visualization  organization  communication  classification  imagination  investigation  presentation  publication  transformation  accumulation  appreciation  compensation  cultivation  discrimination  organisation  orientation  transportation  accommodation  approximation  arbitration  condemnation  confrontation  continuation  incorporation  indignation  manifestation  manipulation  proliferation  qualification  reconciliation  rehabilitation  utilization  articulation  certification  colonization  condensation  dislocation  dissociation  incarnation  infiltration  localization  mobilization  ratification  remuneration  retaliation  signification  socialization  sophistication  stabilization  subordination  transplantation  unification  abbreviation  adjudication  amalgamation  calcification  centralization  commendation  confiscation  conflagration  consecration  constellation  consternation  constipation  crystallization  dehydration  delineation  demarcation  deportation  deregulation  devaluation  dispensation  duplication  extermination  fertilization  fluctuation  gravitation  hybridization  implantation  inoculation  interpolation  liquidation  magnetization  magnification  masturbation  menstruation  prolongation  regurgitation  sedimentation  simplification  synchronization  urbanization  utilisation  concentration  determination  participation  representation  demonstration  differentiation  implementation  justification  modification  appropriation  characterization  contamination  contemplation  depreciation  documentation  emancipation  negotiation  precipitation  recommendation  registration  specification  amplification  denomination  disintegration  experimentation  fragmentation  generalization  globalization  gratification  intoxication  liberalization  modernization  multiplication  notification  optimization  privatization  purification  stratification  argumentation  categorization  democratization  denunciation  diversification  inactivation  intimidation  mortification  nationalization  normalization  ornamentation  polymerization  punctuation  renunciation  repudiation  resuscitation  supplementation  administration  interpretation  identification  pronunciation  reorganization  capitalization  decentralization  excommunication  hospitalization  instrumentation  personification  quantification  rationalization  standardization  conceptualization  intensification  industrialization  misrepresentation  Words that almost rhyme with deacceleration
occasion  haven  basin  hasten  evasion  equation  invasion  persuasion  taken  pagan  shaken  awaken  bacon  laden  maiden  layman  laymen  shaman  patron  forsaken  salesman  contagion  overtaken  straighten  mistaken  undertaken  statesman  tradesmen