trĭvĭālis, e, adj. [trivium; prop. that is in or belongs to the cross-roads or public streets; hence, transf.],
that may be found everywhere , common , commonplace , vulgar , ordinary , trivial (post-Aug.): trivialis scientia, Quint. 1, 4, 27: verba (opp. splendide atque adornate declamare), Suet. Rhet. 6: ludii ex circo, id. Aug. 74: carmen, Juv. 7, 55: mos, Calp. Ecl. 1, 28.
triviālis e, adj.trivium, of the cross-roads, common, vulgar, trivial : carmen, Iu. ...
An Elementary Latin Dictionary