I / incrēdŭlus
adjective

incrēdŭlus

fem. in-crēdŭla · neut. in-crēdŭlum
(perh. not anteAug.). Act.
unbelieving; without faith
unbelieving, incredulous, without faith: odi. Hor. A. P. 188: patronus, Quint. 12, 8, 11: quidam, id. 10, 3, 11: Judaei, Vulg. Act. 14, 2 al.
incredible passive
Pass., incredible: res, Gell. 9, 4, 3.