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