supersupreme UK /ˌsuː.pə.sʊˈpɹiːm/US /ˌsu.pəɹ.sʊˈpɹim/ adjective1 •(rare) Truly supreme; beyond supreme.The very smallest is graded medium, and from there on they go up; next smallest is large, then there are about six or seven intervening grades and the largest of all is supersupreme. — 1974 formsmore supersupreme · most supersupreme