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