Here's what rhymes with underburned.
                        
                        
                    
                                turned  burned  adjourned  churned  learned  spurned  yearned  unearned  returned  discerned  overturned  unlearned  concerned  unconcerned  Words that almost rhyme with underburned
termed  burnt  affirmed  learnt  confirmed  reaffirmed  squirmed  unconfirmed  bird  purged  perturbed  unperturbed  purred  world  heard  observed  third  word  occurred  served  absurd  curved  herd  stirred  blurred  curled  hurled  merged  deterred  spurred  underworld  whirled  curd  surged  curbed  furred  sherd  furled  gird  nerved  twirled  undeterred  referred  preferred  preserved  disturbed  emerged  deserved  deferred  submerged  undisturbed  unheard  diverged  interred  undeserved  unobserved  demurred  scourged  slurred  swerved  swirled  unfurled  unnerved  leisured  reserved  conferred  incurred  inferred  concurred  conserved  overheard  converged  recurred  unreserved  hummingbird  transferred  disinterred