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
Lethal and fell are semantically related. In some cases you can use "Lethal" instead an adjective "Fell".
Lethal
Mutual synonyms
Both words in one sentence
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Another non-lethal parody in Ernest Scared Stupid when Ernest fell in the garbage truck and his dog activated the compactor.
Source: The Walls Are Closing In -
General Thiébault had an impressive but non-lethal fall after a visit to Marshal Gouvion Saint-Cyr: his spurs got caught in each other and he fell down the stairs and right into a glass door.
Source: Staircase Tumble -
In First Blood (but not in the original novel), Rambo largely refrained from using lethal force-even Gault only died when he fell from the helicopter.
Source: Technical Pacifist
Cite this Source
Lethal and Fell. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/fell/lethal
Fell & Lethal. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/fell/lethal>.
Lethal or Fell. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/fell/lethal.
Google Ngram Viewer shows how "fell" and "lethal" have occurred on timeline