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