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