impassĭbĭlis

e, adj.

2. in-passibilis

I. incapable of passion, passionless (eccl. Lat.): deus, Lact. 1, 3, 23; Tert. Apol. 10; Prud. Apoth. 84.—Adv.: impassĭbĭ-lĭter, without passion, Cassiod. Hist. Eccl. 3, 20; 5, 34.
Lewis & Short
A Latin Dictionary, 1879
An open-access project