unrelentingness
suomi-englanti sanakirjaunrelentingness englanniksi
The quality of being unrelenting.
(quote-book)|page=213|author=Herman Melville|year=1852|passage=It plausibly pressed upon him, that as all the evidences of his mother's dying unrelentingness toward him were negative; and the only positive evidence—so to speak—of even that negativeness, was the will which omitted all mention of Pierre (..)