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