Grim
Grim adjective - Showing no signs of slackening or yielding in one's purpose.
Usage example: with grim determination, the woman worked three jobs to put her fatherless children through college
Relentless is a synonym for grim in unrelenting topic. In some cases you can use "Relentless" instead an adjective "Grim", when it comes to topics like hopeless, ruthless, resist. popular alternative
Relentless
Relentless adjective - Showing no signs of slackening or yielding in one's purpose.
Usage example: the team's offense was relentless in trying to score a touchdown
Grim is a synonym for relentless in harsh topic. You can use "Grim" instead an adjective "Relentless", if it concerns topics such as merciless, cruel, ruthless, resist. popular alternative
Nearby Word: relentlessly
Mutual synonyms
Both words in one sentence
- Grim and relentless, this sinister man is a member of the Holy Order of the Templars of Sigmar, an organization whose members seek to punish those who dare employ fell sorcery or consort with the agents of the Dark Gods.
- And the Teutonic expansion campaign details the last remaining pagan people of Europe, the Lithuanians, and their grim war for survival in the face of relentless Christian expansionism.
Source: End of an Age
Cite this Source
Relentless and Grim. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/grim/relentless
Grim & Relentless. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/grim/relentless>.
Relentless or Grim. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/grim/relentless.
Google Ngram Viewer shows how "grim" and "relentless" have occurred on timeline