The story
From unrelentless + -ness.
Etymology from Wiktionary, CC BY-SA 4.0.
unrelentlessness
Today it means: The state or condition of being unrelentless ("relentless"); relentlessness, unrelentingness. Full definition →
Today it means: The state or condition of being unrelentless ("relentless"); relentlessness, unrelentingness. Full definition →
From unrelentless + -ness.
Etymology from Wiktionary, CC BY-SA 4.0.