Beneficial
Beneficial adjective - Promoting or contributing to personal or social well-being.
Lethal is an antonym for beneficial.
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
Nearby Word: lethality
Both words in one sentence
-
A hybrid can get some beneficial traits like strength, danger-sense, or a powerful sense of smell, but shapeshifting into a more animalistic form is generally right out— they can try, but it won't be pretty and is probably lethal.
Source: Webcomic / Archipelago
Cite this Source
Lethal and Beneficial. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/beneficial/lethal
Beneficial & Lethal. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/beneficial/lethal>.
Lethal or Beneficial. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/beneficial/lethal.
Google Ngram Viewer shows how "beneficial" and "lethal" have occurred on timeline