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