Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
conjŭgĭālis, e, adj. [conjugium], belonging to marriage, conjugal, connubial (perh. only in Ov.): foedus, Ov. M. 11, 743: festa, id. ib. 5, 3: jura, id. ib. 6, 536.