Here's what rhymes with athematic.
fanatic hepatic somatic thematic asthmatic spermatic dramatic automatic static aromatic dogmatic emphatic schematic erratic pneumatic rheumatic axiomatic cinematic systematic climatic pragmatic traumatic enzymatic lymphatic aliphatic chromatic kinematic operatic achromatic idiomatic magmatic phlegmatic theocratic zygomatic acrobatic schismatic stigmatic unemphatic aerobatic diplomatic problematic symptomatic autocratic ecstatic enigmatic emblematic prismatic programmatic psychosomatic muriatic astigmatic thermostatic undramatic democratic aristocratic pancreatic asymptomatic charismatic metastatic prostatic monochromatic diagrammatic homeostatic orthostatic unsystematic epigrammatic numismatic panchromatic semiautomatic nondramatic photostatic homoeostatic bureaucratic hydrostatic melodramatic paradigmatic diaphragmatic intrahepatic posttraumatic technocratic undemocratic unproblematic antidemocratic plutocratic undiplomatic unidiomatic idiosyncratic meritocratic nondemocratic electrostatic Words that almost rhyme with athematic
magic syllabic tragic nomadic sporadic pelagic apparatchik priapic disyllabic monosyllabic polysyllabic manic mastic fantastic panic semantic ceramic monastic lactic tactic phallic satanic tannic malefic dynamic traffic classic elastic plastic romantic fabric gastric graphic metallic drastic frantic scholastic thoracic volcanic catholic dynastic hemorrhagic mechanic sarcastic synaptic cephalic galactic pedantic spastic thalamic aplastic clastic haemorrhagic italic bombastic botanic tyrannic matchstick organic gigantic psychiatric barbaric didactic inelastic oceanic stochastic climactic galvanic messianic ophthalmic panoramic tympanic gymnastic heraldic psychopathic titanic bimetallic isobaric slapstick unromantic ataxic osteopathic sycophantic baldric nonelastic geographic inorganic photographic ethnographic neoplastic pediatric prophylactic thermodynamic geriatric glutamic nostalgic presynaptic topographic anaphylactic holographic hyperplastic hypoplastic lithographic splanchnic thermoplastic nonmetallic oceanographic orgiastic paediatric biographic calligraphic neoclassic periphrastic phonographic demographic enthusiastic cytoplasmic hypothalamic aerodynamic hemodynamic postsynaptic psychodynamic telegraphic transatlantic iconoclastic iconographic orthographic tomographic viscoelastic stenographic typographic xerographic seismographic ecclesiastic endoplasmic hydrodynamic pornographic stratigraphic angiographic cartographic chiropractic unenthusiastic anticlimactic choreographic intergalactic interscholastic transoceanic overenthusiastic radiographic intrathoracic autobiographic bibliographic chromatographic crystallographic protoplasmic cinematographic lexicographic electrocardiographic electroencephalographic