- 1 their relentless pursuit of qualitypersistent, continuing, constant, continual, continuous, non-stop, lasting, never-ending, steady, uninterrupted, unabated, unabating, unbroken, interminable, incessant, unstoppable, unceasing, endless, unending, perpetual, unremitting, unrelenting, unrelieved, sustained; unfaltering, unflagging, untiring, unwavering, unswerving, undeviating, persevering, determined, resolute, purposeful, dogged, single-minded, tireless, indefatigable, patient, diligent, assiduous, sedulous, tenacious, pertinacious, insistent, importunate; stubborn, intransigent, obstinate, obduratetheir relentless pursuit of quality[Antonyms] short-lived irresolute intermittent
- 2 a relentless taskmasterharsh, grim, fierce, cruel, severe, strict, punishing, remorseless, merciless, pitiless, ruthless, unmerciful, unsparing, heartless, hard-hearted, hard, stony-hearted, stony, with a heart of stone, cold-blooded, cold-hearted, unforgiving, unfeeling, uncaring, unsympathetic, uncharitable, lacking compassion, unpitying; inflexible, unbending, uncompromising, obdurate, unyielding, unmoved, inexorable, implacablea relentless taskmaster[Antonyms] lenient merciful
Choose the right word
relentless, remorseless, ruthless, pitiless
These words all apply to people or processes that are not affected by anyone's wishes or entreaties. They differ chiefly in the extent to which they emphasize continuing activity or the attitude with which it is carried out.A relentless action or process cannot be stopped ( the relentless march of rainforest destruction ) and is unvaryingly intense or severe ( the ships were subjected to relentless air attack ). When applied to a person, it means ‘inflexible or uncompromising’ but does not necessarily imply a lack of pity or humanity ( a patient but relentless taskmaster ).Remorseless is used of a process that will not be stopped or deflected however great the suffering or distress it causes ( the company continued the remorseless cost-cutting drive ). When used of a person, the word marks them out as having no regret or guilt about the distress they have caused ( a remorseless killer ).A ruthless person has no pity or compassion for others ( ruthless killers had set the building alight ) and is usually determined to continue regardless ( a ruthless operator whose sole ambition is to have a place in political history ).Whereas a ruthless person is generally ruthless in pursuit of some goal, the emphasis of pitiless, a rarer word, is on a more intrinsic absence of pity itself ( his cold pitiless voice ).