Here's what rhymes with modularity.
                        
                        
                    
                                rarity  clarity  parity  polarity  temerity  celerity  verity  capillarity  popularity  posterity  hilarity  prosperity  similarity  solidarity  disparity  angularity  bipolarity  familiarity  sincerity  regularity  dexterity  singularity  granularity  peculiarity  irregularity  insincerity  unfamiliarity  subsidiarity  Words that almost rhyme with modularity
therapy  parody  fidelity  melody  hypnotherapy  chemotherapy  psychotherapy  radiotherapy  hydrotherapy  physiotherapy  readily  legacy  heresy  brevity  leprosy  merrily  warily  wearily  amenity  telemetry  telepathy  acerbity  retinae  apparently  carefully  necessity  density  heavily  penalty  seventy  deputy  ordinarily  allegedly  heredity  terribly  perplexity  serenity  severally  solemnity  verily  sesame  revelry  velvety  legibly  prayerfully  identity  necessarily  primarily  chemistry  destiny  integrity  potentially  presently  specially  steadily  heavenly  jealousy  mentally  supremacy  arbitrarily  centrally  chemically  peasantry  pleasantly  specialty  carelessly  customarily  felony  longevity  pedigree  tenancy  clemency  dreadfully  immensity  medically  militarily  recklessly  weaponry  heraldry  inequity  pedantry  pleasantry  unbearably  credibly  nonentity  tenantry  testily  blessedly  devilry  fretfully  negligee  essentially  intensity  tendency  complexity  pregnancy  extremity  secondly  temporarily  voluntarily  hegemony  momentarily  ascendancy  indemnity  sensibly  ascendency  convexity  dentistry  jealously  restlessly  breathlessly  flexibly  professedly  unpleasantly  helpfully  tangentially  unsteadily  vasectomy  successfully  dependency  fundamentally  accidentally  discrepancy  ostensibly  transparency  helplessly  incessantly  incredibly  tremendously  unnecessarily  biochemistry  marvellously  secondarily  sequentially  splendidly  acceptably  confessedly  lamentably  mastectomy  regretfully  transparently  biochemically  geochemistry  impeccably  inclemency  regrettably  resentfully  respectfully  unsuccessfully  contentedly  hysterectomy  insensibly  preferentially  relentlessly  confidentially  incrementally  indelibly  providentially  impetuously  instrumentally  respectably  sentimentally  tonsillectomy  unacceptably  independently  expectancy  extraordinarily  incidentally  conscientiously  developmentally  exponentially  clandestinely  expectantly  inexpressibly  quintessentially  temperamentally  experimentally  environmentally  contemptuously  existentially  incontestably  indispensably  superintendency  coincidentally