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