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