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