Persistent and Unflagging

Persistent

Persistent adjective - Continuing despite difficulties, opposition, or discouragement.

Unflagging is a synonym for persistent in determined topic. In some cases you can use "Unflagging" instead an adjective "Persistent", when it comes to topics like steadfast, tenacious.

Unflagging

Unflagging adjective - Showing no signs of weariness even after long hard effort.
Usage example: being rewarded for the unflagging zeal with which she led the fund-raising campaign

Persistent is a synonym for unflagging in tireless topic. You can use "Persistent" instead an adjective "Unflagging".
Cite this Source
Unflagging and Persistent. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/persistent/unflagging
Persistent & Unflagging. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/persistent/unflagging>.
Unflagging or Persistent. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/persistent/unflagging.
Google Ngram Viewer shows how "persistent" and "unflagging" have occurred on timeline