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
Also, maybe, Regan, the king’s poisonous middle daughter.
—
Han Ong, New Yorker, 22 June 2025
In addition to cyanide in her water, poisonous powder was also put in her air vents, prosecutors said.
—Kate Linderman, Kansas City Star, 20 June 2025
The last time fans saw her as Britt, she was attacked by a serial killer and died from his poisonous hook.
—Lynette Rice, Deadline, 6 June 2025
Spiders More than 900 species of spiders call Texas home, including two poisonous types — the black widow and brown recluse.
—Brayden Garcia, Fort Worth Star-Telegram, 3 June 2025
See All Example Sentences for poisonous
Han Ong, New Yorker, 22 June 2025
In addition to cyanide in her water, poisonous powder was also put in her air vents, prosecutors said.
—Kate Linderman, Kansas City Star, 20 June 2025
The last time fans saw her as Britt, she was attacked by a serial killer and died from his poisonous hook.
—Lynette Rice, Deadline, 6 June 2025
Spiders More than 900 species of spiders call Texas home, including two poisonous types — the black widow and brown recluse.
—Brayden Garcia, Fort Worth Star-Telegram, 3 June 2025
See All Example Sentences for poisonous
Recent Examples of Synonyms for poisonous
Adjective
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Behavior and reproduction Most frogs are nocturnal, but not poison frogs.—
National Geographic,
National Geographic,
28 Feb. 2020
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Some farmers even intentionally poison cranes to stop them from foraging in their crops.—
National Geographic,
National Geographic,
10 Feb. 2020
Adjective
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Setting the right tone and removing toxic employees becomes mission-critical to managing human employees in an age of AI.—
Jennifer C. Wolfe,
Forbes.com,
2 July 2025
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The full moon in Libra on the 12th illuminates your relationships, highlighting where you may be stuck in codependent or toxic dynamics.—
Meghan Rose,
Glamour,
1 July 2025
Adjective
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But camouflaged in it is a dangerous surprise to unobservant hikers, a venomous copperhead.—
Chad Murphy,
The Enquirer,
2 July 2025
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Copperheads likely account for more than 90% of venomous snake bites in North Carolina, according to the N.C. Wildlife Resources Commission.—
Evan Moore
July 1,
Charlotte Observer,
1 July 2025
Cite this Entry
“Poisonous.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/poisonous. Accessed 19 Jul. 2025.
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