implacabilius
From LSJ
Latin > English (Lewis & Short)
implācābĭlĭus:
I comp. adv., v. implacabilis fin.
Latin > French (Gaffiot 2016)
implācābĭlĭus, d’une manière plus implacable : Tac. Ann. 1, 13.
Latin > German (Georges)
implācābilius, Adv. im Compar. (implacabilis), unversöhnlicher, implacabilius alci irasci, gegen jmd. unversöhnlichen Haß fassen, Tac. ann. 1, 13: graves simultates callide eoque implacabilius nutrire, Tac. hist. 3, 53.