English edit

Etymology edit

From nefarious +‎ -ness.

Noun edit

nefariousness (uncountable)

  1. The state or characteristic of being nefarious.
    • 1899, Booth Tarkington, chapter 7, in The Gentleman From Indiana:
      Thus the eye of Justice may not be said to have winked upon the nefariousness now under its vision.

Translations edit