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