zeallessnesshttp://www.oed.com/dictionary/zeallessness_n%3Ftab%3Dmeaning_and_usezeallessness, n.
Revised 2018

zeallessnessnoun

  1. 1667–
    Stressed as ˈzeallessness.
    1. 1667
      Levity and Zealesness for Reformed Religion.
      E. Waterhouse, Short Narrative Fire in London 65
    2. 1921
      Their zeallessness for God, religion and humanity.
      Indiana (Pennsylvania) Weekly Messenger 22 September 5/2
    3. 2008
      Students themselves aren't to blame for this zeallessness, though.
      University Wire (Cambridge, Massachusetts) (Nexis) 22 April

Originally published as part of the entry for zealless, adj.

zealless, adj. was revised in June 2018.