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