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 .
cōntiōnārius adj. contionor, of a public assembly, mob-like : populus. ...
An Elementary Latin Dictionary