Become demented
Fail and become demented are semantically related. in break down mentally topic. In some cases you can use "Fail" instead a verb phrase "Become demented".
Fail
Fail verb - To stop functioning.
Become demented and fail are semantically related. Sometimes you can use "Become demented" instead a verb "Fail".
Mutual synonyms
Cite this Source
Fail and Become demented. (2016). Retrieved 2026, August 10, from https://thesaurus.plus/related/become_demented/fail
Become demented & Fail. N.p., 2016. Web. 10 Aug. 2026. <https://thesaurus.plus/related/become_demented/fail>.
Fail or Become demented. 2016. Accessed August 10, 2026. https://thesaurus.plus/related/become_demented/fail.
Google Ngram Viewer shows how "become demented" and "fail" have occurred on timeline