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