Lewis & Short

contemptrix (-temt-), īcis, f. [contemptor],

  1. I. she who puts small value upon a thing, a despiser, contemner (rare; not in Cic.): mea, * Plaut. Bacch. 3, 6, 2: superūm propago, * Ov. M. 1, 161.
  2. II. Of inanimate and abstract subjects: contemptrix frigorum eruca, Plin. 19, 8, 44, § 154; 37, 4, 15, § 59: fortitudo contemptrix timendorum est, Sen. Ep. 88, 29: turba periculi, Sil. 17, 411.