Unintentionally, Pierre heard her and understood everything.

But is it better to do wrong intentionally or unintentionally?

But either I do not corrupt them, or I corrupt them unintentionally; and on either view of the case you lie.

My niece (as I once called her) mortified me unintentionally; she said I was ageing.

Captain Abrams had unintentionally contributed to Alfred's discontent.

If I remember right, he was unintentionally the cause of my second whipping.

He loved the great heiress, and had unintentionally won her love!

Unintentionally, I was an obstacle to the fulfilment of the vows you had made.

“Unintentionally, my dear sir—unintentionally,” said the Colonel stiffly.

I know that; but you have done so unintentionally a thousand times.