insperabilis
From LSJ
Latin > English (Lewis & Short)
in-spērābĭlis: e, adj.,
I that cannot be hoped for (post-class.): pax, Gell. 4, 18, 3: nuntius, Amm. 15, 5, 17.
Latin > French (Gaffiot 2016)
īnspērābĭlis, e, qu’on ne peut espérer : Amm. 15, 5, 17.
Latin > German (Georges)
īn-spērābilis, e, nicht zu hoffen, unverhofft, nuntius, Amm. 15, 5, 17: victoria, *Gell. 4, 18, 3 (nach Hertzs Vermutung).