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