credulous Copy link Outline 1. crēdŭlus2. By circuml. • credulous: 1. crēdŭlus: improvident and c. old men, improvidi et c. senes, Cic.: love is a c. thing, c. res amor est, Hor.: Ov. 2. By circuml.: qui temere assentitur, incognita pro cognitis habet: v. preced. art. fin.