Here's what rhymes with unmissionary.
                        
                        
                    
                                marry  missionary  merry  nary  very  necessary  vary  unnecessary  fairy  bury  dairy  ferry  visionary  wary  cherry  hairy  mercenary  berry  sherry  tarry  canary  parry  unwary  harry  tare  barre  terry  faerie  wherry  military  dictionary  urinary  prairie  dysentery  estuary  honorary  seminary  emissary  scary  ternary  cautionary  remarry  apiary  concessionary  humeri  nondairy  ordinary  secondary  customary  monetary  coronary  dietary  imaginary  solitary  stationary  adversary  cemetery  legendary  momentary  sanitary  ancillary  sedentary  veterinary  functionary  funerary  sanguinary  stationery  centenary  confectionery  luminary  aviary  bacillary  buffoonery  legionary  pessary  cassowary  equerry  recessionary  elderberry  sectary  uncustomary  literary  secretary  temporary  pulmonary  capillary  commentary  evolutionary  hereditary  monastery  sanctuary  disciplinary  involuntary  maxillary  reactionary  unitary  budgetary  corollary  inflationary  salutary  apothecary  commissary  fiduciary  itinerary  mortuary  papillary  savagery  statuary  deflationary  dignitary  epistolary  unsanitary  beriberi  diversionary  insanitary  nonmilitary  actuary  huckleberry  lapidary  bilberry  topiary  plagiary  contemporary  revolutionary  arbitrary  preliminary  subsidiary  fragmentary  judiciary  pituitary  tributary  discretionary  planetary  culinary  exclusionary  obituary  expansionary  probationary  supernumerary  breviary  dromedary  eleemosynary  voluptuary  elocutionary  nonliterary  tercentenary  chokecherry  nonhereditary  extraordinary  vocabulary  beneficiary  pecuniary  expeditionary  genitourinary  paramilitary  tutelary  geostationary  bicentenary  proprietary  interdisciplinary  interplanetary  constabulary  undersecretary  multidisciplinary  cardiopulmonary  counterrevolutionary  Words that almost rhyme with unmissionary
belly  allele  jelly  smelly  deli  telly  vermicelli  underbelly  many  messy  heavy  ready  fairly  rarely  barely  semi  petty  levy  penny  antennae  heady  levee  medley  unfairly  jetty  teddy  bevy  faery  jenny  kepi  leggy  recce  sedgy  veggie  healthy  steady  elementary  wealthy  deadly  lengthy  gentry  unhealthy  fleshy  squarely  carefree  sentry  sexy  sketchy  spaghetti  sweaty  unsteady  vestry  belfry  deathly  gayety  hefty  machete  sullenly  confetti  fidgety  pebbly  tempi  testy  breathy  dressy  pesky  thready  lefty  wetly  already  especially  twenty  assembly  scarcely  gently  plenty  epilepsy  freshly  immensely  densely  frenzy  deftly  coquetry  fleshly  halfpenny  stealthy  hostelry  tensely  trendy  aplenty  baronetcy  libretti  maidenly  marquetry  adeptly  effendi  ineptly  directly  friendly  correctly  intensely  intently  unfriendly  excellency  sacredly  preciously  woodenly  indirectly  complementary  expressly  incorrectly  apoplexy  complexly  narcolepsy  ambivalently  deviancy  reassembly  confusedly  equivalently  grotesquely  catalepsy  circumspectly  cognoscenti  penitently