Here's what rhymes with cophenetic.
cosmetic phonetic emetic hermetic fetich genetic poetic kinetic synthetic acetic ascetic frenetic gametic phrenetic magnetic aesthetic energetic athletic pathetic esthetic alphabetic apathetic cybernetic geodetic homiletic splenetic bathetic sympathetic arithmetic prophetic anesthetic diabetic anaesthetic diuretic prosthetic empathetic dietetic antithetic parenthetic unaesthetic exegetic copacetic apologetic phylogenetic biosynthetic geomagnetic kinesthetic ontogenetic nonmagnetic nonathletic psychokinetic unesthetic photosynthetic unsympathetic antidiuretic ferromagnetic paramagnetic antipathetic telekinetic peripatetic onomatopoetic unapologetic parasympathetic pharmacokinetic electromagnetic Words that almost rhyme with cophenetic
medic paramedic metric symmetric ferric relic septic hectic peptic eutectic sceptic derrick pectic domestic authentic generic endemic geometric majestic pelvic angelic asymmetric numeric aseptic centric cleric enteric isometric splenic technic allelic benthic isomeric phrenic skeptic steric turmeric chimeric anorectic irenic academic electric systemic dielectric eclectic esoteric forensic ischemic pathogenic econometric polemic psychometric barometric colorimetric eugenic monomeric pandemic photometric totemic anorexic geodesic hysteric inauthentic acerbic allergenic cataleptic evangelic leukaemic lovesick thermometric diametric redbrick unauthentic cliometric epidemic dialectic eccentric antigenic antiseptic concentric epileptic mesenteric parametric volumetric carcinogenic obstetric biogenic cryogenic egocentric neurogenic neuroleptic psychedelic psychogenic pyogenic tartaric alphanumeric apoplectic dyspeptic geocentric radiometric photogenic paregoric calisthenic callisthenic dyslectic atmospheric epistemic schizophrenic transgenic ethnocentric iatrogenic isoelectric mutagenic stoichiometric androgenic dyslexic heliocentric ionospheric neurasthenic polytechnic hypoallergenic narcoleptic nonelectric telegenic photoelectric anthropogenic nonparametric teratogenic trigonometric nonacademic paraplegic pyrotechnic hydroelectric piezoelectric anthropocentric hallucinogenic