Failing
Failing adjective - Below acceptable in performance.
Mortally ill and failing are semantically related. In some cases you can use "Mortally ill" instead an adjective "Failing".
Mortally ill
Failing and mortally ill are semantically related. Sometimes you can use "Failing" instead an adjective phrase "Mortally ill".
Cite this Source
Mortally ill and Failing. (2016). Retrieved 2026, July 31, from https://thesaurus.plus/related/failing/mortally_ill
Failing & Mortally ill. N.p., 2016. Web. 31 Jul. 2026. <https://thesaurus.plus/related/failing/mortally_ill>.
Mortally ill or Failing. 2016. Accessed July 31, 2026. https://thesaurus.plus/related/failing/mortally_ill.
Google Ngram Viewer shows how "failing" and "mortally ill" have occurred on timeline