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