Flag
Flag verb - To lose bodily strength or vigor.
Usage example: we flagged as we neared the end of the long mountain trail
Fail is a synonym for flag in decline topic. In some cases you can use "Fail" instead a verb "Flag", when it comes to topics like reduction, weaken, increase, fade.
Nearby Word: flagging
Mutual synonyms
Cite this Source
Fail and Flag. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/flag/fail
Flag & Fail. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/flag/fail>.
Fail or Flag. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/flag/fail.
Google Ngram Viewer shows how "flag" and "fail" have occurred on timeline