imprudency

plural imprudencies

1. countableobsoleteuncountableThe fact or quality of being imprudent; rashness.
2. countableobsoleteAn imprudent act.

   [T]he rival and the admirer would certainly avoid amending imprudencies, by which they were both equally likely to profit.

   1790, Amelia Opie, chapter 2, in Dangers of Coquetry, volume I

   1 more example

   I now most seriously do assure my Reader that she was entirely innocent; having never been guilty of anything more than Imprudencies into which she was betrayed by the openness of her Heart, her Youth, and her Education.

   1791, Jane Austen, “History of England”, in Juvenilia