ōmĭnōsus

I. full of foreboding, portentous, ominous (post-Aug.): mons avibus obscenis ominosus, Messala ap. Gell. 13, 14, 6: res, Plin. Ep. 3, 14, 11. —Adv.: ōmĭnōsē, ominously: ominose retentus, Ps.-Quint. Decl. 6, 5.