Here's what rhymes with pioneeered.
                        
                        
                    
                                feared  beard  reared  weird  cheered  geared  peered  neared  jeered  seared  sheared  veered  appeared  cleared  adhered  pioneered  smeared  steered  sneered  reappeared  revered  disappeared  interfered  volunteered  persevered  Words that almost rhyme with pioneeered
filled  killed  build  chilled  guild  willed  billed  milled  tilled  gild  unfilled  built  guilt  skilled  drilled  gilt  unskilled  wilt  rebuild  silt  spilled  thrilled  tilt  grilled  hilt  stilled  refilled  rebuilt  quilt  instilled  spilt  fulfilled  distilled  unfulfilled  did  mid  rid  bid  hid  kid  lid  winged  pinned  sinned  tinged  dimmed  ribbed  rigged  rimmed  ringed  thinned  tinned  undid  amid  grid  grinned  slid  trimmed  abridged  quid  skinned  bridged  filmed  hinged  skimmed  brimmed  skid  forbid  fringed  outlived  turbid  chagrined  downwind  rescind  squid  stringed  underpinned  infringed