Fail and Weaken

Similar meaning words

Fail verb - To lose bodily strength or vigor.

Usage example: ever since she reached the age of 90, Grandma has been noticeably failing

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Weaken is a synonym for fail in decline topic. In some cases you can use "Weaken" instead a verb "Fail", when it comes to topics like increase.

Nearby Words: failure, failing, failed

Weaken verb - To lose bodily strength or vigor.

Usage example: the bodybuilder weakened once she eased off on her workouts

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Fail is a synonym for weaken in increase topic. You can use "Fail" instead a verb "Weaken", if it concerns topics such as reduce the strength of.

Nearby Words: weak, weakness, weakening

The 3E Ravenloft description of Lamordia, land of mad scientists and skeptics, describes an optional phenomenon called the "Smothering of Reason", where Lamordians' prevalent disbelief in the supernatural occasionally causes spells to fail, magical creatures to weaken, etc.

Source: Puff of Logic

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Weaken and Fail. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/fail/weaken

Fail & Weaken. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/fail/weaken>.

Weaken or Fail. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/fail/weaken.

Google Ngram Viewer shows how "fail" and "weaken" have occurred on timeline