inexcusably

Meanings

1. 1
   adv

   in an unpardonable manner or to an unpardonable degree

   They were inexcusably cruel to each other.

2. 2
   adv

   In an inexcusable manner.

   We arrived at the wedding inexcusably late.

3. 3
   adv

   without any excuse

Etymology

From inexcusable + -ly.