sporadic adjective. › not ​happening or ​appearing in a ​pattern; not ​continuous or ​regular: She makes sporadic ​trips to Europe. The ​storm caused sporadic ​flooding ​throughout the ​region. sporadically adverb us /spəˈraed·spəˈræd·ɪk/ › Li’i ve ​been working sporadically ​this. year adverb /us·spəˈraed·spəˈræd/. ɪk li