Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
contĭōnārĭus, a, um, adj. [contio], of or suited to an assembly of the people (very rare): populus, Cic. Q. Fr. 2, 3, 4: oratio, Amm. 27, 6, 5: tibia, Gell. 1, 11, 10: fistula, id. 1, 11, 10 in lemm.