adjective \-ləs\

: continuing without becoming weaker, less severe, etc.

: remaining strict or determined

Full Definition of RELENTLESS

:  showing or promising no abatement of severity, intensity, strength, or pace :  unrelenting <relentless pressure> <a relentless campaign>
re·lent·less·ly adverb
re·lent·less·ness noun

Examples of RELENTLESS

  1. Her relentless optimism held the team together.
  2. The hunter was relentless in pursuit of his prey.
  3. a relentless opponent of deregulation

First Known Use of RELENTLESS

circa 1592


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