Here's what rhymes with flexibility.
                        
                        
                    
                                ability  fertility  agility  hostility  viability  civility  debility  fragility  senility  possibility  mobility  utility  capability  nobility  feasibility  futility  volatility  ductility  sociability  versatility  docility  servility  virility  legibility  scurrility  availability  reliability  amiability  reversibility  negotiability  probability  applicability  susceptibility  acceptability  irritability  admissibility  inaccessibility  invisibility  affordability  divisibility  malleability  incapability  responsibility  tranquillity  adaptability  compatibility  inviolability  practicability  indivisibility  irresponsibility  improbability  incorruptibility  inscrutability  impracticability  communicability  comprehensibility  imperturbability  incomprehensibility  Words that almost rhyme with flexibility
trilogy  billowy  activity  dignity  validity  vicinity  affinity  rapidity  acidity  bigotry  busily  salinity  solidity  nativity  rickety  sublimity  trinity  turbidity  villainy  bigamy  timothy  dizzily  willowy  antiquity  divinity  officially  publicity  symmetry  tyranny  captivity  cheerfully  rigidity  antipathy  eccentricity  felicity  minutely  relativity  simile  timidity  distally  epitome  fixity  fluidity  litany  negativity  prettily  soliloquy  timidly  wilfully  cheerily  epiphany  festivity  willfully  dismally  frigidity  guiltily  tearfully  wittily  abysmally  finicky  privily  rusticity  sufficiently  sympathy  differently  initially  ministry  simplicity  creativity  elasticity  specificity  toxicity  humidity  infinity  morbidity  sufficiency  visibly  visually  vividly  asymmetry  brilliancy  brilliantly  chivalry  complicity  facsimile  femininity  selectivity  skillfully  symphony  fearfully  fearlessly  indignity  polygamy  suspiciously  blissfully  declivity  distantly  expeditiously  fitfully  judicially  ritually  signally  viciously  catholicity  placidity  polyphony  efficiency  deficiency  electricity  explicitly  conductivity  efficiently  implicitly  proximity  liquidity  plasticity  unanimity  alkalinity  assiduously  insensitivity  insufficiently  periodicity  surreptitiously  wistfully  calligraphy  deliciously  exclusivity  hospitably  invalidity  listlessly  proclivity  unofficially  flippancy  prolixity  quizzically  productivity  conspiracy  artificially  contingency  insufficiency  masculinity  proficiency  indifferently  indignantly  intermittently  malignancy  persistently  radioactivity  religiously  superficially  domesticity  magnanimity  beneficially  exigency  invisibly  resiliency  stringency  contingently  stringently  consistently  consistency  delinquency  inherently  inefficiency  predictably  inexplicably  insistently  coherency  inefficiently  minstrelsy  pusillanimity  inconsistency  irresistibly  superconductivity  inconsistently  unpredictably  incoherently  immunodeficiency