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