Here's what rhymes with adequates.
                        
                        
                    
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shapes  grapes  tapes  capes  rapes  grades  shades  raids  fades  maids  babes  drapes  glades  persuades  scrapes  trades  blades  escapes  pervades  arcades  parades  spades  braids  degrades  upgrades  evades  decades  brigades  cascades  crusades  grenades  invades  accolades  blockades  brocades  tirades  barricades  colonnades  escapades  palisades  videotapes  masquerades  stockades  balustrades  promenades  renegades  wastes  wakes  waists  case  face  makes  base  race  takes  grace  pace  chase  lakes  saints  tastes  cakes  lace  paints  vase  faiths  shakes  mace  awakes  pastes  rakes  faints  fakes  maths  safes  place  space  trace  breaks  snakes  stakes  brace  brakes  erase  flakes  apace  partakes  efface  steaks  debase  disgrace  undertakes  deface  diastase  complaints  database  interface  replace  embrace  mistakes  fireplace  displace  retrace  cyberspace  overtakes  forsakes  interlace  pertinacious  rattlesnakes  constraints  commonplace  restraints  aerospace  reiterates  anyplace  marketplace