Lewis Short
(adjective) : crēdŭlus, a, um, credo, II. C. 2.
* That easily believes a thing, credulous, easy of belief, confiding.
* Prop. (freq. and class.).
* Absol.: in fabulis stultissima persona est improvidorum et credulorum senum,Cic. Lael. 26, 100: stultus auditor et credulus, id. Font. 6, 13; Quint. 11, 1, 71; Tac. H. 1, 12 fin.; Hor. C. 1, 5, 9; Ov. M. 3, 432 et saep.—Of fishes trusting to the hook, Ov. M. 8, 858; cf. credulitas; and of animals anticipating no danger,Hor. Epod. 16, 33.
* Transf., of inanimate subjects: aures regis,Curt. 10, 1, 28: credula res amor est,Ov. H. 6, 21; id. M. 7, 826: spes animi mutui,Hor. C. 4, 1, 30: convivia,full of confidence, confiding, trusting,Just. 2, 10, 10: fama ( = facile credens),Tac. H. 1, 34 fin.; cf. Roth ad Tac. Agr. p. 210.
* With in aliquid: nos in vitium credula turba sumus, Ov F. 4, 312.
Charlton T. Lewis, Charles Short, A Latin Dictionary