Here's what rhymes with erratically.
                        
                        
                    
                                emphatically  statically  aromatically  rheumatically  dramatically  schematically  thematically  ecstatically  climatically  chromatically  pneumatically  operatically  automatically  democratically  dogmatically  enigmatically  autocratically  emblematically  phlegmatically  acrobatically  diplomatically  idiomatically  systematically  bureaucratically  problematically  axiomatically  melodramatically  thermostatically  aristocratically  symptomatically  idiosyncratically  Words that almost rhyme with erratically
radically  tragically  sporadically  drastically  graphically  classically  lavishly  laughingly  lastingly  irascibly  raffishly  passively  tacitly  organically  savagely  massively  panicky  placidly  validly  slavishly  passingly  slantingly  inactively  waggishly  mannishly  mechanically  dynamically  candidly  sarcastically  attractively  handedly  everlastingly  proactively  impassively  enchantingly  scholastically  telepathically  invalidly  exactingly  inorganically  monastically  abashedly  gymnastically  caddishly  prancingly  plurality  sanctity  veracity  fantastically  distractedly  retroactively  venality  demographically  ecclesiastically  ethnographically  aerodynamically  biographically  outlandishly  snappishly  telegraphically  bombastically  unflaggingly  humanity  enthusiastically  centrality  immorality  tenacity  illegality  banality  casuistry  bestiality  interactively  mendacity  nostalgically  photographically  topographically  unabashedly  expansively  radioactively  offhandedly  orthographically  typographically  lithographically  unattractively  highhandedly  immortality  rationality  temporality  speciality  outstandingly  pugnacity  evenhandedly  pornographically  personality  originality  impartiality  criminality  materiality  mutuality  emotionality  eventuality  informality  marginality  pertinacity  collegiality  seasonality  technicality  autobiographically  bibliographically  underhandedly  principality  artificiality  punctuality  understandingly  immateriality  individuality  functionality  intentionality  superficiality  proportionality  sentimentality  conventionality  instrumentality  constitutionality  heterosexuality  unconventionality  unconstitutionality