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
Synonyms & Similar Words
Relevance
Antonyms & Near Antonyms
Example Sentences
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Recent Examples of poisonous
In mid-May, public health officials in Napa County said three people had been hospitalized after eating poisonous wild mushrooms foraged in the Deer Park community.
—
Karen Garcia, Los Angeles Times, 30 May 2026
According to local media reports, Xu spent hundreds of thousands of yuan (tens of thousands of dollars) to buy highly toxic substances online, including alpha-amanitin, a lethal compound found in some poisonous mushrooms.
—CBS News, 27 May 2026
According to local media reports, Xu spent hundreds of thousands of yuan (tens of thousands of dollars) to buy highly toxic substances online, including alpha-amanitin, a lethal compound found in some poisonous mushrooms.
—ABC News, 26 May 2026
In the Bay Area, poisonous mushrooms have been foraged in Alameda, Marin, Monterey, Napa, San Francisco, San Mateo and Sonoma counties, the health department said.
—Bay City News Service, Mercury News, 23 May 2026
See All Example Sentences for poisonous
Karen Garcia, Los Angeles Times, 30 May 2026
According to local media reports, Xu spent hundreds of thousands of yuan (tens of thousands of dollars) to buy highly toxic substances online, including alpha-amanitin, a lethal compound found in some poisonous mushrooms.
—CBS News, 27 May 2026
According to local media reports, Xu spent hundreds of thousands of yuan (tens of thousands of dollars) to buy highly toxic substances online, including alpha-amanitin, a lethal compound found in some poisonous mushrooms.
—ABC News, 26 May 2026
In the Bay Area, poisonous mushrooms have been foraged in Alameda, Marin, Monterey, Napa, San Francisco, San Mateo and Sonoma counties, the health department said.
—Bay City News Service, Mercury News, 23 May 2026
See All Example Sentences for poisonous
Recent Examples of Synonyms for poisonous
Adjective
-
Power to the people is poison to the powerful.—
Sun Sentinel Editorial Board,
Sun Sentinel,
10 Feb. 2026
-
Dropped in recent years because carbs are poison.—
Fort Worth Star-Telegram,
Fort Worth Star-Telegram,
22 Jan. 2026
Adjective
-
All parts of the plant are toxic if eaten.—
Tim Johnson,
Chicago Tribune,
6 June 2026
-
Prosecutors argued at trial that Shirilla drove into the building to end her toxic relationship with Russo, and that Flanagan was an unintended victim who happened to be in the car.—
Sarah Rumpf-Whitten,
FOXNews.com,
6 June 2026
Adjective
-
While Hines expressed concern that the snakes could be venomous water moccasins, Kennedy ultimately brushed off her worries as the reptiles continued to thrash and buck in his hands.—
Drew Pittock,
USA Today,
28 May 2026
-
That species, while not venomous, often bites and defecates a foul-smelling musk when handled.—
John Wilkerson,
STAT,
28 May 2026
Cite this Entry
“Poisonous.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/poisonous. Accessed 7 Jun. 2026.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
