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