As though she wasn't sure what to make of him, wasn't sure if he was entirely trustworthy.

The Bible, having been inspired by God, is entirely trustworthy and without error.

However, his narrative occasionally exaggerates or becomes dreamlike and is not entirely trustworthy.

"Do you believe your uncle to be entirely trustworthy?"

Characters' motives are often in doubt; few seem entirely trustworthy.

One disadvantage of this feature is that the computers which are actually performing the calculations might not be entirely trustworthy.

Formes's own Memoirs, first published in 1888, may not be entirely trustworthy.

Those given by Charnock are not entirely trustworthy and some of them appear very doubtful.

Another problem, which even alibi club members admit, is that other members may not be entirely trustworthy.

Even then, she harbored some doubt whether the Zenobians were entirely trustworthy.