(adjective) : trĭvĭālis, e, 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.