Here's what rhymes with tetonic.
                        
                        
                    
                                tonic  ionic  sonic  conic  phonic  daemonic  bionic  chronic  ironic  tectonic  demonic  iconic  platonic  diatonic  chorionic  colonic  mnemonic  sardonic  hypertonic  isotonic  laconic  catatonic  subsonic  avionic  acetonic  embryonic  harmonic  supersonic  diachronic  monotonic  planktonic  polyphonic  symphonic  telephonic  hydroponic  electronic  hegemonic  ultrasonic  histrionic  synchronic  monophonic  stereophonic  ganglionic  architectonic  infrasonic  quadraphonic  quadrophonic  pathognomonic  philharmonic  microelectronic  Words that almost rhyme with tetonic
atomic  comic  genomic  diatomic  anatomic  autonomic  subatomic  economic  ergonomic  tragicomic  taxonomic  agronomic  astronomic  uneconomic  gastronomic  socioeconomic  macroeconomic  microeconomic  topic  boric  logic  toxic  folic  gothic  tropic  atopic  biotic  bardic  hayrick  rollick  cosmic  aortic  chaotic  erotic  garlic  caustic  despotic  geologic  idiotic  pyloric  formic  frolic  gnostic  iambic  karmic  meiotic  meteoric  myopic  robotic  cirrhotic  diabolic  seraphic  strophic  subtopic  chopstick  carsick  placekick  historic  symbolic  metabolic  patriotic  periodic  antibiotic  apostolic  aquatic  exotic  hydraulic  neurotic  biologic  caloric  diastolic  episodic  hypnotic  melodic  psychotic  systolic  carbolic  etiologic  hyperbolic  isotopic  parabolic  phenolic  anabolic  anarchic  anoxic  basaltic  catabolic  cathodic  dialogic  euphoric  fibrotic  pedagogic  bucolic  ecologic  heartsick  rhapsodic  theosophic  shambolic  prehistoric  cytotoxic  isotropic  narcotic  pathologic  ascorbic  metaphoric  necrotic  semiotic  spasmodic  symbiotic  synoptic  yardstick  agnostic  cathartic  lethargic  nontoxic  orthodontic  polymorphic  sclerotic  thrombotic  antarctic  demagogic  folkloric  hierarchic  vitriolic  acrostic  subarctic  allegoric  subtropic  aetiologic  chocoholic  shopaholic  chocaholic  diagnostic  alcoholic  philosophic  physiologic  catastrophic  histologic  neurologic  prognostic  endoscopic  metamorphic  psychologic  oligarchic  peristaltic  psychotropic  quixotic  telescopic  homoerotic  unpatriotic  xenophobic  gyroscopic  workaholic  posthypnotic  sophomoric  astronautic  horologic  hydrochloric  anisotropic  morphologic  hematologic  melancholic  stereoscopic  arthroscopic  stroboscopic  macrobiotic  meteorologic  nonnarcotic  haematologic  noncaloric  gynaecologic  seismologic  microscopic  macroscopic  philanthropic  epidemiologic  immunologic  spectroscopic  gynecologic  bacteriologic  fluoroscopic  kaleidoscopic  microcosmic  antispasmodic  misanthropic  anthropomorphic  atherosclerotic  pharmacologic  nonalcoholic  electroscopic  submicroscopic