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