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