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