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