Here's what rhymes with comparativehistorical.
                        
                        
                    
                                historical  ahistorical  rhetorical  unhistorical  prehistorical  categorical  metaphorical  Words that almost rhyme with comparativehistorical
symbolical  diabolical  logical  tropical  conical  comical  chronicle  histological  illogical  ironical  zoological  dropsical  ethological  biological  hospital  philosophical  physiological  theological  geological  periodical  mythological  philological  subtropical  dialogical  ethnological  serological  theosophical  pocketsful  psychological  ideological  ecological  economical  pathological  sociological  astronomical  ontological  pedagogical  phonological  analogical  astrological  etiological  topological  typological  hydrological  aetiological  tautological  urological  audiological  semitropical  nontropical  astronautical  horological  speleological  technological  methodological  morphological  neurological  paradoxical  eschatological  genealogical  radiological  teleological  mineralogical  hematological  haematological  ornithological  taxonomical  gastronomical  archaeological  chronological  immunological  archeological  microscopical  psychophysiological  terminological  uneconomical  embryological  toxicological  dermatological  gynaecological  musicological  epidemiological  meteorological  pharmacological  bacteriological  neurophysiological  gynecological  phenomenological  neuropsychological  electrophysiological  microbiological  biotechnological