Here's what rhymes with unmathematical.
                        
                        
                    
                                mathematical  fanatical  sabbatical  systematical  pragmatical  problematical  Words that almost rhyme with unmathematical
magical  tragical  tactical  fantastical  mannitol  fascicle  monastical  satanical  classical  mechanical  theatrical  graphical  botanical  dynamical  tyrannical  fanciful  capitol  irascible  nontheatrical  geographical  biographical  neoclassical  topographical  contractible  biomechanical  puritanical  typographical  ecclesiastical  expansible  autobiographical  bibliographical  lexicographical  electromechanical  historiographical