Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
‡ prōpŭdĭānus, a, um, adj. [propudium], offered on account of infamous deeds: propudianus porcus dictus est, ut ait Capito Atteius, qui in sacrificio gentis Claudiae velut piamentum et exsolutio omnis contractae religionis est, Fest. p. 238 Müll.