Decay
Fail
Fail verb - To lose bodily strength or vigor.
Usage example: ever since she reached the age of 90, Grandma has been noticeably failing
Decay is a synonym for fail in reduction topic. You can use "Decay" instead a verb "Fail", if it concerns topics such as deteriorate.
Mutual synonyms
Common collocations
| way | decay way | fail way |
Both words in one sentence
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One of the signs of the Imperium's gradual decay is that the Golden Throne is starting to fail.
Source: Immortality Inducer - Since these plans tended to fail, the writers eventually resorted to an Enemy Mine plot every other episode to avoid Villain Decay.
Source: Big Bad / Western Animation - A downside is Villain Decay; it is hard to present a villain as a credible threat if they repeatedly fail to stop the bumbling hero that they supposedly outmatch.
Source: Invincible Incompetent
Cite this Source
Fail and Decay. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/decay/fail
Decay & Fail. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/decay/fail>.
Fail or Decay. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/decay/fail.
Google Ngram Viewer shows how "decay" and "fail" have occurred on timeline