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