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
Venomous is a synonym for poisonous in attitude topic. In some cases you can use "Venomous" instead an adjective "Poisonous", when it comes to topics like help, acrid, malicious, harmful. popular alternative
Venomous
Venomous adjective - Containing or contaminated with a substance capable of injuring or killing a living thing.
Usage example: a venomous arrow
Poisonous is a synonym for venomous in attitude topic. You can use "Poisonous" instead an adjective "Venomous", if it concerns topics such as help, acrid, rancorous. popular alternative
Nearby Words: venom, venomously
Mutual synonyms
Both words in one sentence
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The Other Wiki has lists for venomous and poisonous organisms (no, they're not the same thing).
Source: Poisonous Person - Surrounding animals such as livestock and, later on, poisonous and venomous creatures accrete onto the meteorite, falling into the crater and melting, until the resulting blob of flesh has enough mass to transmute into a new dragon.
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Because Australia is so isolated from other landmasses, all the organisms living here are basically in an extreme evolutionary lensman arms race to be more deadly and poisonous and venomous than their competitors.
Source: Death World
Cite this Source
Venomous and Poisonous. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/poisonous/venomous
Poisonous & Venomous. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/poisonous/venomous>.
Venomous or Poisonous. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/poisonous/venomous.
Google Ngram Viewer shows how "poisonous" and "venomous" have occurred on timeline