fidedigno

fidedigno
fee-deh-deeg'-noh
reliable, trustworthy
Examples
1. Pablito le dijo a su hermanito que Papá Noel solo le trae regalos a los hermanos mayores, pero no es una fuente fidedigna.
Pablito told his little brother that Santa Claus only brings presents to older brothers, but he's not a reliable source.
 
2. Si no encontramos un testigo fidedigno, tendremos que abandonar el caso.
If we don't find a trustworthy witness, we'll have to drop the case.