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