unrelenting (adjective) unrelenting: merciless
Sinonime: bound, bound and determined, brick-wall, ceaseless,
constant,
continual,
continuous,
cruel, dead set on,
endless,
grim, hanging tough, hard-headed,
implacable,
incessant,
inexorable,
intransigent, iron-fisted,
mortal,
perpetual,
persistent, pitiless,
relentless, remorseless,
rigid,
ruthless,
set,
steady,
stern,
stiff, stiff-necked,
tenacious,
tough, unabated, unbending, unbroken, unflinching, unremitting, unsparing,
unwavering,
unyieldingAntonime: compassionate,
flexible,
merciful, relenting,
sympathetic