Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
‡ postŭlārĭus, a, um, adj. [postulo], that demands or claims: postularia fulgura, which signify that a forgotten vow must be performed, or a neglected sacrifice be offered, Fest. p. 245 Müll.; for this is found postulatoria, Caecil. ap. Sen. N. Q. 2, 49, 1.