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