Credible

Cred"i*ble (krĕd"ĭ*b'l), a. [L. credibilis, fr. credere. See Creed.] Capable of being credited or believed; worthy of belief; entitled to confidence; trustworthy.

Things are made credible either by the known condition and quality of the utterer or by the manifest likelihood of truth in themselves.
Hooker.

A very diligent and observing person, and likewise very sober and credible.
Dampier.