Here's what rhymes with preconcern.
                        
                        
                    
                                concern  fern  turn  learn  burn  stern  tern  yearn  churn  spurn  discern  adjourn  quern  unconcern  upturn  sauterne  return  overturn  nocturne  taciturn  subaltern  Words that almost rhyme with preconcern
firm  confirm  reconfirm  therm  term  affirm  germ  sperm  worm  infirm  terme  berm  perm  reaffirm  squirm  corm  isotherm  endosperm  wheatgerm  angiosperm  gymnosperm