From Wiktionary, the free dictionary
From lackless + -ness.
lacklessness (uncountable)
- (rare) The lack of a lack of something; presence or abundance.
2010, Luke Sunderland, Old French Narrative Cycles: Heroism Between Ethics and Morality:Driven by a narcissistic fantasy of sacrifice, Kahedin ends up embodying lack in an attempt to achieve lacklessness.