Here's what rhymes with redder.
                        
                        
                    
                                header  cheddar  spreader  Words that almost rhyme with redder
letter  ledger  leper  etcher  better  pepper  debtor  metre  ureter  fetter  setter  wetter  bettor  dredger  sweater  stretcher  abettor  stepper  begetter  millimetre  carburettor  centimetre  ever  error  elder  leather  leisure  lesser  render  lever  lender  lessor  rarer  wrecker  never  whether  pressure  enter  measure  pleasure  gender  weather  lecture  tender  terror  clever  seller  slender  treasure  bearer  cellar  feather  tenor  vendor  beggar  ester  rector  sender  teller  tremor  dresser  fairer  feller  heather  sever  wearer  blender  checker  fender  fresher  nether  peddler  tether  carer  ember  herder  pedlar  renter  sharer  welder  bender  presser  thresher  vender  zephyr  however  center  member  centre  sector  forever  gesture  shelter  surrender  temper  vector  venture  wherever  tenure  whoever  censure  helper  offender  sensor  splendor  censor  stellar  aggressor  assessor  denser  denture  dweller  elector  nectar  oppressor  soever  tester  jester  welter  censer  fester  metier  pester  cleanser  erector  fencer  speller  spender  trencher  vesper  welcher  together  remember  whatever  director  whenever  professor  collector  endeavor  endeavour  texture  cerebellar  defender  possessor  propeller  whichever  engender  gentler  impeller  sceptre  selector  specter  spectre  suppressor  avenger  pretender  scepter  smelter  tempter  whomever  depressor  ejector  provender  refresher  scarcer  declarer  altogether  receptor  successor  adventure  detector  displeasure  inventor  investor  protector  semester  compressor  connector  trimester  confessor  indenture  polyester  projector  reflector  whosoever  assembler  contender  debenture  howsoever  injector  objector  blasphemer  dissenter  respecter  acupressure  bisector  defector  deflector  dissector  intenser  architecture  whatsoever  condenser  conjecture  inspector  predecessor  distemper  preceptor  storyteller  dispenser  wheresoever  whomsoever  bestseller  epicenter  intercessor  sequester  transgender  whensoever  dismember  epicentre  nonmember  interstellar  peradventure  transgressor  countermeasure  interceptor  misadventure  multiplexer  experimenter