as in poisoned
containing or contaminated with a substance capable of injuring or killing a living thing
some evil person was leaving out poisonous meat for neighborhood dogs to eat
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Recent Examples of poisonous
This stuff has to be poisonous.
—
Kansas City Star, 18 Sep. 2025
Erin Patterson, who murdered three relatives with poisonous mushrooms, has been given a life prison sentence by the supreme court in Australia.
—Max Goldbart, Deadline, 8 Sep. 2025
Wolf spider bites are not poisonous and won't cause sores or body-wide symptoms from its venom.
—Carrie Madormo, Health, 6 Sep. 2025
This unconstitutional partisan politicization is poisonous to unit morale and discipline with long-term consequences for who serves and why.
—Chicago Tribune, 5 Sep. 2025
See All Example Sentences for poisonous
Kansas City Star, 18 Sep. 2025
Erin Patterson, who murdered three relatives with poisonous mushrooms, has been given a life prison sentence by the supreme court in Australia.
—Max Goldbart, Deadline, 8 Sep. 2025
Wolf spider bites are not poisonous and won't cause sores or body-wide symptoms from its venom.
—Carrie Madormo, Health, 6 Sep. 2025
This unconstitutional partisan politicization is poisonous to unit morale and discipline with long-term consequences for who serves and why.
—Chicago Tribune, 5 Sep. 2025
See All Example Sentences for poisonous
Recent Examples of Synonyms for poisonous
Adjective
-
Constant procedural upheaval and backlogs are poison.—
Scott White,
Forbes.com,
15 Aug. 2025
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Behavior and reproduction Most frogs are nocturnal, but not poison frogs.—
National Geographic,
National Geographic,
28 Feb. 2020
Adjective
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This action starts the process of clearing toxic species, which restores the blood vessels’ natural role as an effective waste-clearing pathway.—
Mrigakshi Dixit,
Interesting Engineering,
7 Oct. 2025
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Chocolate, caffeine, alcohol, and raw dough all pose serious risks due to toxic ingredients or fermentation byproducts.—
Maria Azzurra Volpe,
MSNBC Newsweek,
7 Oct. 2025
Adjective
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Pythons are non-venomous and range in length from 23 inches to 33 feet, according to the San Diego Zoo Wildlife Explorers.—
Saleen Martin,
USA Today,
2 Oct. 2025
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Their latest case calls for the duo to investigate a venomous, yet misunderstood reptile named Gary De’Snake, who is voiced by Everything Everywhere All At Once star Ke Huy Quan.—
Etan Vlessing,
HollywoodReporter,
29 Sep. 2025
Cite this Entry
“Poisonous.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/poisonous. Accessed 9 Oct. 2025.
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