Kostic rhymes with:
caustic, agnostic, bostic, caustic, diagnostic, mostek, acoustic, agnostic, altruistic, anachronistic, antagonistic, antiballistic, artistic, atavistic, atheistic, autistic, ballistic, bombastic, bostic, bostick, capitalistic, caustic, characteristic, chauvinistic, christic, coloristic, cystic, deterministic, diagnostic, domestic, drastic, drumstick, dualistic, dynastic, ecclesiastic, elastic, enthusiastic, euphemistic, evangelistic, expressionistic, fantastic, fantastik, fatalistic, feudalistic, futuristic, gymnastic, haverstick, hedonistic, hellenistic, heuristic, holistic, humanistic, iconoclastic, idealistic, imperialistic, impressionistic, individualistic, inelastic, interscholastic, jelisic, jingoistic, journalistic, kostick, legalistic, linguistic, logistic, majestic, masochistic, materialistic, mechanistic, militaristic, mistic, monastic, monopolistic, moralistic, mostek, mystic, narcissistic, nationalistic, naturalistic, novelistic, oligopolistic, onomastic, opportunistic, optimistic, pantheistic, paternalistic, patristic, pessimistic, plastic, pluralistic, polytheistic, primitivistic, propagandistic, pugilistic, puristic, realistic, reifsteck, relativistic, ritualistic, rustic, sadistic, sarcastic, scholastic, sensationalistic, simplistic, sistek, socialistic, stalinistic, statistic, stochastic, stylistic, supercalifragilistic, surrealistic, synergistic, terroristic, thermoplastic, uncharacteristic, unenthusiastic, unrealistic, voyeuristic
Kostic sounds like:
kaatz, kadish, kataoka, kate's, kates, kathy's, katja, kato's, kats, katsuhiko, katsushi, katyusha, katyushas, katz, kautz, keats, keatts, keds, keetch, keith's, keitz, ketch, ketchie, ketz, kid's, kiddies, kids, kids', kitagawa, kitch, kites, kitowski, kits, kitsch, kittiwake, kitts, kitz, kiyotaka, kodak, kodak's, kodiak, koetje, kokate's, koskotas, kostas, kostecki, kostek, kostick, kostka, kotas, kotch, kotecki, kotek, kotowski, kottke, kottwitz, kotz, kowitz, kudos, kudzu, kutch, kutsch, kutz, kuwait's, kuwaitis, kwiatek, kwiatkowski, kyd's