Here's what rhymes with mercapt.
                        
                        
                    
                                capped  adapt  wrapped  mapped  tapped  clapped  rapt  trapped  snapped  slapped  overlapped  strapped  handicapped  Words that almost rhyme with mercapt
attached  matched  hatched  thatched  patched  grabbed  snatched  scratched  detached  stabbed  despatched  dispatched  cast  cat  caste  camped  cant  gasped  aghast  that  fact  last  passed  past  fast  sat  attacked  fat  grant  vast  craft  hat  laughed  packed  rat  shaft  backed  dashed  graft  grasped  hast  lacked  bat  chat  classed  cracked  mast  mat  pact  shalt  tact  chant  clamped  clasped  cramped  crashed  lashed  pat  raft  scant  amassed  canst  clashed  damped  hacked  lapsed  mashed  massed  racked  sacked  tacked  tat  vat  plant  exact  flat  attract  draft  tract  blast  collapsed  glanced  react  danced  draught  elapsed  flashed  ranked  stamped  surpassed  taxed  thanked  chanced  enact  encamped  harassed  masked  slant  smashed  spat  stacked  staffed  tracked  waxed  banked  overcast  recast  slashed  smacked  stat  yanked  advanced  impact  intact  interact  branched  flanked  implant  caveat  democrat  relapsed  repast  splashed  supplant  unsurpassed  abstract  enhanced  extract  relaxed  counteract  financed  habitat  artifact  photographed  subtract  detract  mimeographed  retract  telegraphed  thermostat  transact  diplomat  distract  aristocrat  enthusiast  handicraft  transplant