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relentless

[ri-lent-lis]
See more synonyms for relentless on Thesaurus.com
adjective
  1. that does not relent; unyieldingly severe, strict, or harsh; unrelenting: a relentless enemy.
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Origin of relentless

First recorded in 1585–95; relent + -less
Related formsre·lent·less·ly, adverbre·lent·less·ness, noun

Synonyms

See more synonyms for relentless on Thesaurus.com
rigid, unbending, obdurate, adamant, unyielding. See inflexible.

Antonyms

merciful.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for relentlessly

Contemporary Examples

Historical Examples

  • Strive and grope as he would, the thing had driven him on relentlessly.

    The Spenders

    Harry Leon Wilson

  • She would be cross-examined, kindly enough but relentlessly.

  • The vivid image of Miss Haldin seemed to stand by him, watching him relentlessly.

    Under Western Eyes

    Joseph Conrad

  • The dream moved on relentlessly toward its inevitable catastrophe.

    Possessed

    Cleveland Moffett

  • “Hit's the fourth time since sorghum time,” the boy went on relentlessly.


British Dictionary definitions for relentlessly

relentless

adjective
  1. (of an enemy, hostile attitude, etc) implacable; inflexible; inexorable
  2. (of pace or intensity) sustained; unremitting
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Derived Formsrelentlessly, adverbrelentlessness, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for relentlessly

relentless

adj.

1590s, from relent + -less. Related: Relentlessly; relentlessness.

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Online Etymology Dictionary, © 2010 Douglas Harper