Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
‡ siccārĭus, a, um, adj. [siccus], of or for drying or keeping dry: canistra, stands for wine-cups (used for keeping the table or the clothes from being wet), acc. to Serv. Verg. A. 1, 706.