Here's what rhymes with monoharmonic.
harmonic ionic tonic sardonic sonic conic phonic chronic ironic chorionic demonic iconic mnemonic laconic subsonic daemonic bionic hegemonic colonic platonic polyphonic symphonic avionic philharmonic acetonic embryonic tectonic ultrasonic supersonic diachronic ganglionic histrionic hypertonic isotonic monotonic planktonic synchronic catatonic diatonic telephonic hydroponic monophonic electronic pathognomonic stereophonic infrasonic quadraphonic quadrophonic architectonic microelectronic Words that almost rhyme with monoharmonic
comic atomic autonomic genomic ergonomic economic anatomic agronomic subatomic astronomic taxonomic diatomic gastronomic macroeconomic uneconomic tragicomic 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 psychotic systolic idiotic necrotic pyloric semiotic spasmodic synoptic agnostic anabolic cathodic cytologic fibrotic lethargic meteoric nephrotic orthodontic polymorphic thrombotic bucolic folkloric hierarchic vitriolic heartsick rhapsodic theosophic chopstick nonnarcotic aetiologic noncaloric astronautic placekick metabolic patriotic biologic despotic episodic geologic histologic isotropic neurologic pathologic philanthropic prognostic anisotropic ascorbic atherosclerotic etiologic hyperbolic isotopic metaphoric morphologic parabolic pharmacologic psychologic symbiotic yardstick basaltic cathartic melancholic nontoxic oligarchic antarctic arthroscopic demagogic diabolic homoerotic xenophobic acrostic ecologic workaholic subtropic chocoholic seismologic shopaholic chocaholic diagnostic antibiotic apostolic hydrochloric physiologic catastrophic cytotoxic diastolic macroscopic endoscopic immunologic metamorphic pedagogic psychotropic quixotic telescopic fluoroscopic unpatriotic antispasmodic gyroscopic misanthropic nonalcoholic subarctic macrobiotic posthypnotic meteorologic gynaecologic microscopic prehistoric anthropomorphic gynecologic hematologic peristaltic stereoscopic microcosmic stroboscopic haematologic spectroscopic bacteriologic kaleidoscopic epidemiologic submicroscopic electroscopic