What is "in all honesty"

Usage examples of "in all honesty".

Mara would have a long waitfor information that might, in all honesty, be impossible toacquire.

The whole matter of the manuscript was a gamble, he told himself in all honesty, that must be taken.

I still maintained a small practice in Paddington, but my work was undemanding - so much so that I had turned my hand to writing an account of my meeting with Holmes for private publication - and I always managed to make myself available on those occasions when Holmes requested my presence (I cannot, in all honesty, say help) on a case.

I'll want to see some contingency planning for a seizure of the ship, but, I'll tell you now that in all honesty I don't anticipate your being able to put together an option that I'll sign off on.

But I ask you, in all honesty, is it many more terrifying than leaving the power in their hands?

And that you can't really say in all honesty whether I'm happy or unhappy, because you haven't even inquired whether I exist?