atrocious Copy link Outline 1. nĕfārĭus, nĕfandus2. immānis, e (i. e. monstrous, enormous)3. dīrus4. atrox, ōcis • atrocious: 1. nĕfārĭus, nĕfandus: v. abominable. 2. immānis, e (i. e. monstrous, enormous): the a. and barbarous custom of sacrificing human beings, i. ac barbara consuetudo hominum immolandorum, Cic. 3. dīrus: an a. crime, dirum nefas, Virg.: v. dreadful. 4. atrox, ōcis: a thing so wicked, so a., is incredible, res tam scelesta, tam a. credi non potest, Cic.: v. shocking.