Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
in-cēnis (in-coen-), e, adj. [in-cenatus], that has not dined, dinnerless: senex, Plaut. Cas. 4, 1, 18 (cf. incenatus, id. ib. 4, 2, 9).