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