in-vīsĭbĭlis

e, adj.
I. invisible, unseen (post-Aug.): foramina, Cels. praef.: terra, Tert. adv. Herm. 29 init.: deus, Lact. 7, 9; Paul. Nol. Carm. 35, 208; Tert. Carn. Chr. 12: ea in nobis sunt meliora, quae sunt invisibilia, Aug. Ep. 159, 3: opera ad illos dies invisibiles pertinentia, quibus creavit omnia, Aug. de Gen. 6, 6 init. al.—Adv.: in-vīsĭbĭlĭter, invisibly, Tert. adv. Val. 14; Aug. de Gen. 6, 6, 10.
Lewis & Short
A Latin Dictionary, 1879
An open-access project