Unrelenting vs. Relentless

Unrelentingadjective

Not relenting; not yielding in strength, severity, or determination.

Unrelentingadjective

Having no pity; not being or becoming lenient, mild, gentle, or merciful

Unrelentingadjective

Not relenting; unyielding; rigid; hard; stern; cruel.

Unrelentingadjective

not to be placated or appeased or moved by entreaty;

Unrelentingadjective

never-ceasing;

Relentlessadjective

Unrelenting or unyielding in severity

Relentlessadjective

Unremitting, steady and persistent

Relentlessadjective

Unmoved by appeals for sympathy or forgiveness; insensible to the distresses of others; destitute of tenderness; unrelenting; unyielding; unpitying; as, a prey to relentless despotism.

Relentlessadjective

not to be placated or appeased or moved by entreaty;

Relentlessadjective

never-ceasing;