unrelenting

Mane (Îngilîzî)

1. Not relenting; not yielding in strength, severity, or determination.
2. Having no pity; not being or becoming lenient, mild, gentle, or merciful

Hevwate

relentless

pitiless

inexorable

unforgiving

brutal

ruthless

persistent

merciless

grim

iron

stern

unsparing

remorseless

clamant

unappeasable

importunate

unmerciful

severe

implacable

glaring

grotty

hard

hardcore

hard-core

harsh

heavy

ill-favoured

incessant

inclement

inflexible

insistent

intense

keen

loud

lurid

noisome

noisy

objectionable

repetitive

rough

ruffianly

sharp

showy

steely

stiff

stone

🪨

strict

strident

stubborn

tall

Werger

unerbittlich

implacável

inesorabile

tenaz

amansız

implacable

meedogenloos

unbeugsam

inflessibile

implacable

inexorable

impitoyable

eisern

airain

αδυσώπητος

Etîmolojî (Îngilîzî)

From un- + relenting.