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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Example Sentences
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Recent Examples of poisonous
The incident comes a week after a horse died after ingesting a poisonous plant in the park.
—
Thomas Tracy,
New York Daily News,
18 June 2026
The plant, which is non-native and is for ornamental purposes, is poisonous to horses.
—
Alexa Herrera,
CBS News,
16 June 2026
Not only are the leaves poisonous to humans and pets, but the vine itself is invasive and can spread disease to trees.
—
Samantha Johnson,
Martha Stewart,
7 June 2026
The consequences ranged from hobbling Reconstruction to hastening the end of the Ottoman Empire to poisonous deflation, and the blundering response by governments helped shape the modern world.
—
Air Mail,
6 June 2026
See All Example Sentences for poisonous
Thomas Tracy,
New York Daily News,
18 June 2026
The plant, which is non-native and is for ornamental purposes, is poisonous to horses.
—
Alexa Herrera,
CBS News,
16 June 2026
Not only are the leaves poisonous to humans and pets, but the vine itself is invasive and can spread disease to trees.
—
Samantha Johnson,
Martha Stewart,
7 June 2026
The consequences ranged from hobbling Reconstruction to hastening the end of the Ottoman Empire to poisonous deflation, and the blundering response by governments helped shape the modern world.
—
Air Mail,
6 June 2026
See All Example Sentences for poisonous
Recent Examples of Synonyms for poisonous
Adjective
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Power to the people is poison to the powerful.
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Dropped in recent years because carbs are poison.
Adjective
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The wetland has absorbed toxic runoff from a warehouse fire before, resulting in a fish die-off.
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The exhibit is in partnership with the Houston Museum of Natural Science and explores the hidden dangers of the natural world, such as poisonous, venomous, or toxic plants and animals.
Adjective
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Harry's book 'Spare' was especially venomous toward the family and caused a lot of hurt.
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Team representative Ruth Pintner has since told the Charlotte Observer in an email that the snake was not a copperhead but a non-venomous water snake.
Cite this Entry
“Poisonous.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/poisonous. Accessed 29 Jun. 2026.
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