Lewis & Short

sĕcundārĭus, a, um, adj. [secundus].

  1. I. Of or belonging to the second class, sort, or quality (mostly technical); second-rate, middling, inferior: mel, Col. 12, 11, 1: passum, id. 12, 39, 2; Plin. 14, 9, 11, § 82: triticum (v. cibarium), id. 18, 9, 20, § 87: panis, id. 18, 10, 20, § 89; Suet. Aug. 76 et saep.
  2. II. Of abstr. things (Ciceron.): in hoc loco caput erit illud accusatori, si demonstrare poterit, etc. … secundarium, si, etc., Cic. Inv. 2, 7, 24: habet statum res publica de tribus secundarium, id. Rep. 1, 42, 65.