Quibus enim nihil est in ipsis opis ad bene beateque vivendum → Every age is burdensome to those who have no means of living well and happily
intractable: P. and V. σκληρός.
invincible: P. and V. δύσμαχος, ἀνίκητος; see invincible.
unbridled: P. and V. ἀκόλαστος, Ar. and P. ἀκρατής; see unbridled.