Implacable and Slack

Implacable

Implacable adjective - Showing no signs of slackening or yielding in one's purpose.
Usage example: an implacable dedication to the proposition that everyone is entitled to a quality education

Slack is an antonym for implacable.

Nearby Words: implacability, implacably

Slack

Slack adjective - Not bound by rigid standards.
Usage example: slack supervision on the project

Implacable is an antonym for slack.

Cite this Source
Slack and Implacable. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/implacable/slack
Implacable & Slack. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/implacable/slack>.
Slack or Implacable. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/implacable/slack.
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