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