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