unimpeachable

unimpeachable
adj.
P. ἀνέλεγκτος, ἀνεξέλεγκτος.

unimpeachable:

1. sanctus, sanctissimus (free from blemish or fault): v. IRREPROACHABLE.

2. lŏcuples (of a witness: of good authority): v. TRUSTWORTHY. See also SPOTLESS.