from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The quality of being inexcusable.
from the GNU version of the Collaborative International Dictionary of English
- n. The quality of being inexcusable; enormity beyond forgiveness.
from The Century Dictionary and Cyclopedia
- n. The character or state of being inexcusable.
inexcusable + -ness (Wiktionary)