Lethal
Lethal adjective - Likely to cause or capable of causing death.
Untreatable and lethal are semantically related. In some cases you can use "Untreatable" instead an adjective "Lethal".
Nearby Word: lethality
Untreatable
Lethal and untreatable are semantically related. Sometimes you can use "Lethal" instead an adjective "Untreatable".
Both words in one sentence
- This may involve a condition that is lethal and virtually untreatable like advanced stage cancer, or something that needs urgent attention like an intracranial hemorrhage or an aortic dissection.
Source: Radiograph Of Doom
Cite this Source
Untreatable and Lethal. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/lethal/untreatable
Lethal & Untreatable. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/lethal/untreatable>.
Untreatable or Lethal. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/lethal/untreatable.
Google Ngram Viewer shows how "lethal" and "untreatable" have occurred on timeline