English edit

Etymology edit

undutiful +‎ -ness

Noun edit

undutifulness (countable and uncountable, plural undutifulnesses)

  1. The state or condition of being undutiful.
    • 1866 February, [O.G. Trevelyan], “The Dawk Bungalow”, in Frazer's Magazine, London, page 218:
      "Since that young Marsden came to the station, your undutifulness has been past bearing."