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