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