Here's what rhymes with antiidiotypic.
                        
                        
                    
                                phenotypic  philippic  Words that almost rhyme with antiidiotypic
lytic  critic  acidic  cenobitic  juridic  bromidic  dendritic  coenobitic  zoophytic  analytic  catalytic  hemolytic  parasitic  granitic  paralytic  proteolytic  arthritic  impolitic  antisemitic  porphyritic  nephritic  syphilitic  fibrinolytic  haemolytic  hydrolytic  thrombolytic  saprophytic  hermaphroditic  encephalitic  psychoanalytic  electrolytic  diptych  civic  lyric  terrific  mimic  mythic  picnic  autistic  idyllic  physic  cynic  lithic  thymic  gimmick  triptych  dipstick  pinprick  nitpick  clinic  cystic  mystic  rhythmic  prolific  citric  cryptic  elliptic  horrific  limbic  lipstick  pacific  rabbinic  satiric  empiric  neolithic  arrhythmic  periwig  flyspeck  sylphic  specific  artistic  holistic  acrylic  ballistic  ecliptic  logistic  sadistic  theistic  egoistic  honorific  juristic  egotistic  bulimic  paleolithic  puristic  scientific  realistic  intrinsic  stylistic  heuristic  idealistic  statistic  dualistic  antiarrhythmic  atheistic  basophilic  metaphysic  monistic  patristic  patronymic  aphoristic  palaeolithic  pantomimic  sophistic  nepotistic  antagonistic  optimistic  apocalyptic  extrinsic  journalistic  logarithmic  monolithic  naturalistic  nonspecific  pessimistic  simplistic  altruistic  hydrophilic  socialistic  synergistic  unscientific  algorithmic  animistic  eosinophilic  fatalistic  futuristic  hedonistic  hieroglyphic  pantheistic  polycystic  syllogistic  chauvinistic  eulogistic  megalithic  surrealistic  unspecific  inartistic  jingoistic  nonscientific  pugilistic  belletristic  casuistic  polyclinic  nonrhythmic  linguistic  unrealistic  deterministic  materialistic  mechanistic  hemispheric  moralistic  narcissistic  opportunistic  paternalistic  pluralistic  ritualistic  carboxylic  cataclysmic  imperialistic  legalistic  militaristic  monotheistic  novelistic  organismic  positivistic  cannibalistic  polytheistic  shamanistic  stratospheric  voyeuristic  euphemistic  feudalistic  transpacific  characteristic  humanistic  monopolistic  nationalistic  probabilistic  anachronistic  capitalistic  relativistic  communistic  impressionistic  oligopolistic  uncharacteristic  overoptimistic  individualistic  rationalistic  sociolinguistic  universalistic  spiritualistic  expressionistic