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