As adjectives the difference between relentless and remorseless
is that relentless is unrelenting or unyielding in severity while remorseless is without remorse, mercy or pity.
relentless
English
Adjective
(
en adjective)
Unrelenting or unyielding in severity
Unremitting, steady and persistent
Derived terms
* relentlessness
remorseless
English
Adjective
(head)
without remorse, mercy or pity
unyielding or relentless