Here's what rhymes with sympathetically.
                        
                        
                    
                                pathetically  apathetically  theoretically  hermetically  parenthetically  unsympathetically  magnetically  electromagnetically  Words that almost rhyme with sympathetically
aseptically  sceptically  skeptically  metrically  antiseptically  technically  diametrically  majestically  veritably  electrically  charitably  effeminacy  hesitancy  hesitantly  concentrically  eccentrically  effeminately  reticently  geocentrically  residency  ecumenically  egocentrically  indelicately  ineligibly  inextricably  negligently  intelligently  infinitesimally  photoelectrically  sacrilegiously  hydroelectrically