Definition: merciless
Synonyms: inexorable, inflexible, intractable, ironfisted,pitiless, rancorous, relentless, remorseless, ruthless, unappeasable, unbending, uncompromising, unflinching, unforgiving, unrelenting, unyielding.
Source: Roget's New Millennium™ Thesaurus, First Edition (v 1.1.1)
Copyright © 2005 by Lexico Publishing Group, LLC. All rights reserved.
UKBiker
aka "guilty as charged yr honour"