Benign and Poisonous

Benign

Benign adjective - Not causing or being capable of causing injury or hurt.
Usage example: around campus he's known as a real character, but one whose eccentricities are entirely benign

Poisonous is an antonym for benign.

Nearby Words: benignant, benignly, benignity

Poisonous

Poisonous adjective - Containing or contaminated with a substance capable of injuring or killing a living thing.
Usage example: some evil person was leaving out poisonous meat for neighborhood dogs to eat

Benign is an antonym for poisonous.

Nearby Words: poison, poisoned, poisoning, poisoner

Both words in one sentence

  • Poisonous Friend: Rochedo is an extremely benign variety of this trope.
  • Plant Person Most plant people in the game are more-or-less benign (or at least protectors of nature) but an outright evil example is nightshades (also known as wood woses) which are spirits of poisonous plants.
    Source: Plant Person
Cite this Source
Poisonous and Benign. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/benign/poisonous
Benign & Poisonous. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/benign/poisonous>.
Poisonous or Benign. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/benign/poisonous.
Google Ngram Viewer shows how "benign" and "poisonous" have occurred on timeline