Lewis & Short

irrĕmĕdĭābĭlis (inr-), e, adj. [2. inremediabilis], incurable, irremediable, beyond cure (post-Aug.).

  1. I. Lit.: in vino cicuta, Plin. 25, 13, 95, § 152.
  2. II. Trop.
    1. A. In gen.: scelus, Plin. 11, 53, 115, § 279: summa malorum, Salv. Gub. Dei, 4, p. 121: lacrimae, not to be checked, Vulg. Job, 10, 4.
    2. B. Implacable: factio, Maecenas ap. Sen. Ep. 114, 5.