Fell
Fell adjective - Likely to cause or capable of causing death.
Usage example: planning in the event that the enemy resorted to biological warfare and released some fell virus on the civilian population
Sublethal and fell are semantically related. In some cases you can use "Sublethal" instead an adjective "Fell".
Sublethal
Cite this Source
Sublethal and Fell. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/fell/sublethal
Fell & Sublethal. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/fell/sublethal>.
Sublethal or Fell. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/fell/sublethal.
Google Ngram Viewer shows how "fell" and "sublethal" have occurred on timeline