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