Lethal
Lethal adjective - Likely to cause or capable of causing death.
Usage example: we were lucky that the snake's venom wasn't lethal, and our friend turned out to be all right
Terminal is a synonym for lethal in deadly topic. In some cases you can use "Terminal" instead an adjective "Lethal", when it comes to topics like fatal. popular alternative
Nearby Word: lethality
Mutual synonyms
Both words in one sentence
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Secretly Dying: A character hides the fact that they have a terminal illness or lethal wound.
Source: The Secret Index -
He does this by murdering the head of the FBI, performing a number of terrorist attacks, and attempting to expose a crowded subway terminal to a lethal pathogen.
Source: Love Makes You Evil - Mercy Kill: "Do No Harm" (2x05) explores the "right to die" issue with a physician on trial for assisted suicide in giving a woman with terminal cancer lethal drugs so she could kill herself before it got even worse.
Source: Series / Equal Justice
Cite this Source
Terminal and Lethal. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/lethal/terminal
Lethal & Terminal. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/lethal/terminal>.
Terminal or Lethal. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/lethal/terminal.
Google Ngram Viewer shows how "lethal" and "terminal" have occurred on timeline