Here's what rhymes with unacknowl.
                        
                        
                    
                                mall  mol  maul  moll  small  call  fall  vol  wall  ball  hall  tall  col  doll  haul  crawl  gall  shawl  sol  pall  tal  coll  kraal  pol  qual  bawl  loll  pawl  yawl  stall  banal  fmall  brawl  cabal  drawl  squall  thrall  scrawl  trawl  appall  alcohol  overall  ethanol  install  methanol  withal  befall  vagal  areal  sprawl  carryall  enthrall  netball  sepal  coverall  enthral  buckyball  keelhaul  recolour  baseball  aerosol  overhaul  fascial  severall  volleyball  fireball  cannonball  ergosterol  racquetball  gasohol  barcarolle  bradawl  hairball  butterball  plimsoll  basketball  cortisol  urethral  waterfall  forestall  cytosol  neanderthal  cholesterol  protocol  sepulchral  wherewithal  Words that almost rhyme with unacknowl
more  nor  mar  mor  for  your  far  four  war  door  car  bar  core  shore  bore  corps  ignore  par  pour  wore  fore  por  sore  jar  lore  pore  roar  tar  tor  tore  var  boar  char  cor  lor  whore  chore  dar  gar  har  lar  soar  tsar  yore  crore  czar  foure  gore  hoar  sar  thar  torr  wor  snore  hoer  floor  score  store  star  ashore  drawer  guitar  scar  swore  adore  afar  spore  abhor  spar  voir  ajar  inshore  galore  dinar  tzar  kronur  before  anymore  bizarre  cigar  furthermore  offshore  vapour  rapport  antiwar  avoir  bazaar  decor  evermore  implore  caviar  commissar  commodore  lobar  lvoire  senor  sycamore  avatar  matador  velar  abattoir  nevermore  peignoir  sitar  explore  restore  seminar  prewar  deplore  guarantor  underscore  dinosaur  pouvoir  savoir  carnivore  cinnabar  fourscore  furore  hardcore  herbivore  scimitar  seafloor  footsore  isobar  motorcar  samovar  albacore  minibar  tramcar  millibar  omnivore  picador  underfloor  bedsore  disbar  handcar  outscore  postwar  histoire  threescore  forevermore  handlebar  hellebore  forswore  sidecar  humidor  foreswore  paperboy  reservoir  heretofore  repertoire  twentyfour  hereinbefore  superstar  theretofore  troubadour  stevedore  battledore  escritoire  conservatoire  superstore  insectivore  tyrannosaur  brontosaur  registrar  conquistador  marl  gnarl  parle  snarl  unsnarl