as in poisonous
containing or contaminated with a substance capable of injuring or killing a living thing
certain plants are toxic if eaten
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Antonyms & Near Antonyms
as in poison
a substance that by chemical action can kill or injure a living thing
tested for toxics in the water supply
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Antonyms & Near Antonyms
Example Sentences
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Recent Examples of toxic
Ct Jones, Rolling Stone, 30 Sep. 2025
Even the return of a more mature Alexis Saelemaekers, who was a member of Milan’s last title-winning team in 2022, appears to have contributed to a more wholesome, less toxic environment.
—James Horncastle, New York Times, 30 Sep. 2025
Wayne Messam, Sun Sentinel, 15 June 2025
The politics at Oakland Unified have moved from contentious to outright toxic in the past two years, with the board split on key votes around financial decisions.
—Shomik Mukherjee, Mercury News, 31 May 2025
See All Example Sentences for toxic
Adjective
You guys call the podcast a way to fight back against the toxic positivity movement.
—Ct Jones, Rolling Stone, 30 Sep. 2025
Even the return of a more mature Alexis Saelemaekers, who was a member of Milan’s last title-winning team in 2022, appears to have contributed to a more wholesome, less toxic environment.
—James Horncastle, New York Times, 30 Sep. 2025
Noun
Just last week, for example, the Trump administration, through its Environmental Protection Agency, proposed to withdraw two rules imposing air toxics and greenhouse gas limits on fossil-fuel power plants.
—Wayne Messam, Sun Sentinel, 15 June 2025
The politics at Oakland Unified have moved from contentious to outright toxic in the past two years, with the board split on key votes around financial decisions.
—Shomik Mukherjee, Mercury News, 31 May 2025
See All Example Sentences for toxic
Recent Examples of Synonyms for toxic
Adjective
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Powell County paramedic Eddie Barnes and one of his team members were called to the Kentucky Reptile Zoo in May after the zoo’s co-director, James Harrison, was bitten by a poisonous mamba snake, local news outlet LEX 18 reported.—
Toria Sheffield,
PEOPLE,
27 Sep. 2025
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Rather than allowing herself to be captured by the Romans, legend has it that Cleopatra let a poisonous asp bite her in Alexandria, according to the documentary.—
Ashley Strickland,
CNN Money,
26 Sep. 2025
Noun
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In this lead-free America, children grow up with their minds and bodies not damaged by this poison.—
Tom Frieden,
Big Think,
30 Sep. 2025
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Dogs like to catch them in their mouths, and the toad excretes the poison into dog's mouth.—
Maria Morava,
MSNBC Newsweek,
30 Sep. 2025
Noun
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But warming ocean temperatures, rising sea levels, disease and human activity, such as pollution, have severely degraded Florida's reefs, according to the Florida Keys National Marine Sanctuary.—
Julia Jacobo,
ABC News,
1 Oct. 2025
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In the series, Marie, an ambitious young woman of minor nobility, learns that her lung disease is terminal.—
Emiliano De Pablos,
Variety,
1 Oct. 2025
Noun
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Surprisingly, marine life appeared to tolerate toxins like TNT and RDX.—
Sujita Sinha,
Interesting Engineering,
26 Sep. 2025
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The researchers hypothesized that the reason there are more organisms living on the warheads than around them is because living on a solid hard surface is more advantageous than more transient substrates – and, in doing so, the organisms had become more tolerant to toxins seeping from the weapons.—
New Atlas,
New Atlas,
25 Sep. 2025
Cite this Entry
“Toxic.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/toxic. Accessed 6 Oct. 2025.
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