Here's what rhymes with adequal.
                        
                        
                    
                                Words that almost rhyme with adequal
radical  addible  actual  animal  casual  affable  national  rational  mandible  axonal  clavicle  fallible  palatal  cannibal  laughable  passable  madrigal  chasuble  satiable  savable  capital  practical  valuable  tangible  diagonal  irrational  maximal  palpable  taxable  pyramidal  factional  sagittal  flammable  cantonal  blamable  bankable  cantabile  fanciable  fractional  impassable  infallible  octagonal  tractable  verapamil  impassible  graspable  frangible  grammatical  invaluable  adaptable  hexagonal  implacable  impractical  intangible  inflammable  detachable  impalpable  collapsible  expandable  merchantable  semiannual  unpractical  attractable  declarable  international  compatible  intractable  interactional  lnternational  nontaxable  retractable  nonflammable  unflappable  multinational  transnational  understandable  supranational  transactional  ungrammatical  incompatible  nondetachable  extrapyramidal