warmed-upEnglishOxford American Thesauruswarmed-up adjective 1 a warmed-up pasty: reheated, heated up; North American warmed-over. ▷antonyms fresh. 2 the proposal is a mishmash of warmed-up ideas: unoriginal, derivative, imitative, uninventive, copied, plagiarized, plagiaristic, secondhand, rehashed; trite, hackneyed, stale, tired, worn out, flat, stock, banal, uninspired; informal old hat, hacky. ▷antonyms original, innovative.