Here's what rhymes with unauthenticatcd.
                        
                        
                    
                                be  t  de  d  p  pp  b  di  g  tea  bee  te  je  ti  cd  pea  tee  dd  dy  ji  bb  chih  dee  gee  pee  tiie  he  we  me  she  see  c  sea  v  ve  key  tree  pre  thee  ye  fee  http  knee  ne  si  z  cc  li  mi  plea  vii  dc  ni  sie  tlie  wee  xi  xii  xiii  ci  hee  hie  ki  lee  nee  ri  ry  tc  wi  wie  bc  db  gi  hae  kb  lea  mea  mee  ny  pg  quay  shi  shih  sibi  thi  tp  whieh  yi  ze  bt  dp  fea  fie  ftp  ghee  lii  nae  nie  pari  pd  prix  qi  rhe  rny  sae  sci  shee  tb  tke  xy  zi  settee  tepee  suttee  twee  epee  teepee  brie  whee  three  free  qui  ac  flee  devotee  fc  fhe  glee  ski  xxi  xxii  xxiii  absentee  flea  gli  pc  rupee  sd  sv  xxxi  alii  apogee  bailee  donee  jt  lhe  quis  spree  tv  vendee  xxxii  xxxiii  goatee  scree  abscissae  bursae  honeybee  saree  sudsy  topee  whoopee  footsie  puttee  sirree  kedgeree  yippee  degree  agree  decree  mit  trustee  debris  xvi  xvii  esprit  exp  foresee  lessee  addressee  oversee  trainee  xxvi  xxvii  appellee  appointee  pensee  xxxvi  xxxvii  amphorae  bowsprit  oversea  queerly  retiree  amputee  banshee  detainee  parolee  prithee  ranee  wormy  artsy  attendee  aurorae  emcee  escapee  fusee  gutsy  invitee  conferee  draftee  honoree  abductee  florae  soignee  tootsie  paltrier  sultrier  shoetree  guarantee  nobody  disagree  marquis  assignee  grantee  guaranty  jubilee  referee  legatee  marquee  repartee  tympani  undersea  bumblebee  curie  manatee  potpourri  timpani  calliope  internee  monody  quinsy  returnee  wannabe  deportee  dungaree  inductee  wannabee  wintrier  bourgeoisie  mortgagee  nominee  interviewee  licensee  phonology  quelque  consignee  diastole  hyperbole  transferee  filigree  franchisee  axletree  chiropody  colossally  jamboree  enlistee  guarani  whiffletree  maharanee  singletree  whippletree  idiosyncrasy