Pertinacious and Unflagging

Pertinacious

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

Unflagging and pertinacious are semantically related. In some cases you can use "Unflagging" instead an adjective "Pertinacious".

Nearby Word: pertinacity

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

Pertinacious and unflagging are semantically related. Sometimes you can use "Pertinacious" instead an adjective "Unflagging".
Cite this Source
Unflagging and Pertinacious. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/pertinacious/unflagging
Pertinacious & Unflagging. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/pertinacious/unflagging>.
Unflagging or Pertinacious. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/pertinacious/unflagging.
Google Ngram Viewer shows how "pertinacious" and "unflagging" have occurred on timeline