Ill
Sicker
Ill and sicker are semantically related in not healthy topic. You can use "Ill" instead an adjective "Sicker".
Mutual synonyms
Cite this Source
Sicker and Ill. (2016). Retrieved 2026, August 09, from https://thesaurus.plus/related/ill/sicker
Ill & Sicker. N.p., 2016. Web. 09 Aug. 2026. <https://thesaurus.plus/related/ill/sicker>.
Sicker or Ill. 2016. Accessed August 09, 2026. https://thesaurus.plus/related/ill/sicker.
Google Ngram Viewer shows how "ill" and "sicker" have occurred on timeline