On the whole, these people have been entirely sincere in their efforts to help the insane.

The man was otherwise probably perfectly pleasant and in this instance he had been entirely sincere.

"I figure they may not be entirely sincere, but at least they are here," she said.

Even if they don't believe it's entirely sincere, they tend to respond to it anyway.

Gillian did not believe that his last remark was entirely sincere.

It sounded like a quote from some particularly bad Victorian novel and not entirely sincere.

This caused some to believe that the serious tone of The Crown was not entirely sincere.

But he was startled to realize that it came out entirely sincere.

He was entirely sincere in that attitude and those words.

When he says he looks forward to an interesting exchange, he seems entirely sincere.