Here's what rhymes with supplementaire.
                        
                        
                    
                                bear  chair  pair  bare  dare  tear  pear  pare  thair  their  there  where  care  fair  hair  share  prayer  rare  wear  spare  fare  faire  hare  mare  stare  ware  impair  mer  stair  guerre  lair  mehr  cher  fere  mair  sehr  blare  midair  aware  affair  anywhere  compare  repair  swear  unfair  glare  beware  flare  scare  snare  flair  affaire  repairer  tinware  square  prepare  declare  despair  unaware  forbear  underwear  bugbear  ensnare  medicare  parterre  dinnerware  outerwear  overbear  spyware  coheir  eldercare  ironware  beachwear  funfair  ovenware  everywhere  millionaire  earthenware  thoroughfare  aftercare  curare  debonair  disrepair  solitaire  chinaware  commissionaire  kitchenware  maidenhair  legionnaire  millionnaire  broodmare  debonaire  camelhair  backstair  questionnaire  silverware  horsehair  tableware  billionaire  concessionaire  forswear  foreswear  setsquare  wirehair  doctrinaire  foursquare  extraordinaire  multimillionaire  Words that almost rhyme with supplementaire
tell  del  bell  gel  tel  dell  delle  belle  bel  telle  jell  well  cell  fell  sell  hell  shell  dwell  spell  nel  yell  celle  motel  weal  impel  knell  nell  sel  morel  nacelle  noel  hotel  smell  compel  swell  infidel  repel  befell  nouvelle  quell  unwell  lapel  quel  retell  novelle  outsell  farewell  citadel  dispel  excel  expel  cartel  foretell  gaol  propel  gazelle  pastel  decibel  resell  undersell  misspell  parallel  personnel  clientele  materiel  carousel  fontanelle  photocell  bagatelle  caravel  commonweal  carrousel  muscatel  oversell  zinfandel  mademoiselle  organelle  nonparallel  tagliatelle  antipersonnel  therefor