Here's what rhymes with immodifiable.
                        
                        
                    
                                viable  liable  certifiable  notifiable  justifiable  pliable  deniable  reliable  identifiable  undeniable  verifiable  classifiable  rectifiable  unreliable  unjustifiable  unidentifiable  unverifiable  Words that almost rhyme with immodifiable
parietal  sizable  sizeable  desirable  advisable  definable  assignable  likable  likeable  decidable  risible  liveable  survivable  undesirable  excitable  indefinable  inadvisable  maniacal  undefinable  analyzable  ascribable  unlikeable  unliveable  ammoniacal  libidinal  realizable  describable  recyclable  climbable  nonassignable  indescribable  irreconcilable  cognizable  demoniacal  indictable  reconcilable  monomaniacal  recognizable  unrecognizable