relentless
/ɹɪˈlɛntləs/ adjective
- adjective Unrelenting or unyielding in severity.
- adjective Steady and persistent; unremitting.
Synonyms
bateless grim incontestable inexorable invincible irresistible overpowering overwhelming potent puissant persistent unrelenting unremitting unstoppable unyielding stern unappeasable unforgiving
Antonyms
contestable exorable impotent relenting remitting stoppable underwhelming vincible yielding
Etymology
From relent + -less.
Webster’s 1913
- adjective 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.
Sources: Wiktionary · WordNet 3.0 · Webster’s 1913 — from the Wiktionary entry “relentless”, CC BY-SA 4.0. Details