1. unrelenting - Adjective
2. unrelenting - Adjective Satellite
Not relenting; unyielding; rigid; hard; stern; cruel.
Source: Webster's dictionarythe brutal summer sun Source: Internet
a brutal winter Source: Internet
grim determination Source: Internet
grim necessity Source: Internet
Russia's final hour, it seemed, approached with inexorable certainty Source: Internet
relentless persecution Source: Internet