Here's what rhymes with obtestor.
                        
                        
                    
                                Words that almost rhyme with obtestor
utter  ulcer  lustre  muster  youngster  luster  duster  juster  other  under  upper  butter  rubber  cluster  hunter  cutter  gutter  shutter  mutter  usher  bluster  tuber  udder  adjuster  putter  umber  number  culture  mother  color  cover  summer  suffer  wonder  younger  hunger  lover  buffer  sulphur  supper  thunder  vulgar  lumber  molar  sculptor  sulfur  butler  comer  flutter  rudder  runner  shudder  bumper  bunker  clutter  gunner  hover  paler  rougher  sucker  tougher  tumbler  blubber  buzzer  duller  jumper  succor  vulture  bugger  muffler  sputter  stutter  sunder  another  brother  rupture  juncture  plunder  asunder  blunder  puncture  slumber  drummer  plunger  abductor  coadjutor  erasure  plumber  smother  crusher  plover  scrubber  smuggler  structure  recover  conductor  sculpture  ocular  uncover  ligature  outnumber  encumber  filibuster  discover  instructor  midsummer  premolar  embrasure  pustular  tricolor  agriculture  constructor  restructure  aquaculture  chronometer  conjuncture  undercover  watercolor  pentameter  acupuncture  horticulture  counterculture  rediscover  substructure  semiconductor  superstructure  cartographer  superconductor  infrastructure