unintentional

Either it was unintentional or she is the smoothest trickster ever, because she never reacts to it.

A gentle noise, so gentle that the spectator almost deems it unintentional, is now heard.

I was the unintentional cause of making a quarrel between her and the nun of Chelles.

This discrepancy is not, like many other Bible discrepancies, an unintentional error.

If any such omission occurs, it is unintentional and will be supplied as soon as discovered.

He began rather to like Millbank; we will not say because Millbank was the unintentional cause of his pleasurable sensations.