tumulous,a.rare.|ˈtjuːmjʊləs| [f. L. tumul-us, tumulus + -ous: cf.prec.] a.=prec. (rare—0). b. Forming a tumulus; tumular. 1828Webster, Tumulous, full of hills.1897Daily News 21 Sept. 8/3 Parcels built up in tumulous columns, which rise from the floor nearly up to the ceiling.