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