invulnerabilis
From LSJ
τάλαιναι κόραι Φαέθοντος οἴκτῳ δακρύων τὰς ἠλεκτροφαεῖς αὐγάς → girls, in grief for Phaethon, drop the amber radiance of their tears
Latin > English (Lewis & Short)
invulnĕrābĭlis: e, adj.,
I invulnerable: hostis, Sen. Ben. 5, 5, 1.—Transf.: cum animum virtus induravit, undique invulnerabilem praestat, Sen. Cons. ad Helv. 13, 2; id. Ep. 9, 2.