obstinacy Copy link Outline 1. pertĭnācia (persistency; a more passive quality than pervicacia, which is from vincere, determination to carry one's point2. pervĭcācia (in bad and, less freq., good sense)3. obstĭnātio4. animus pertinax, pervicax, obstinatus • obstinacy: 1. pertĭnācia (persistency; a more passive quality than pervicacia, which is from vincere, determination to carry one's point: less freq. in good sense): o. is the kindred (vice) to perseverance, pert. perseverantiae finitima est, Cic. Inv. 2, 54, fin.: cf. id. Fin. 1, 8, 27: Caes. 2. pervĭcācia (in bad and, less freq., good sense): your o. and pride have compelled me to speak, p. tua et superbia coegit me loqui, Liv. 9, 34, fin.: Cic. Join: pervicacia et [inflexibilis] obstinatio, Plin. Ep. 10, 96 (97), 3. 3. obstĭnātio: Plin. min.: v. supr. (1). In Cic. prov. Cons. 17, 41, obstinatio animi = unshaken resolution: and in earlier authors generally, the word denotes a good quality. 4. animus pertinax, pervicax, obstinatus: v. obstinate.