Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
scaenārĭus, a, um, adj. [scaena], of or belonging to the stage, scenic, dramatic, theatrical (late Lat. for scaenicus): artifices, i. e. players, Amm. 28, 4, 32: PICTOR, i. e. a scenepainter, Inscr. Murat. 948, 4.