Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
mūnĕrālis, e, adj. [munus], of or relating to presents (ante- and post-class.): lex, by which advocates were forbidden to receive presents (the Cincian law; v. Cincius), Plaut. ap. Paul. ex Fest. p. 143 Müll.