as in poisonous
containing or contaminated with a substance capable of injuring or killing a living thing
certain plants are toxic if eaten
Synonyms & Similar Words
Relevance
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
Synonyms & Similar Words
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 toxic
Jillian Frankel, People.com, 1 Sep. 2025
An internal investigation by the company — just a single page buried in thousands of pages of state records — shows at least one toxic chemical spill has already occurred in the plant.
—Olivia Evans, The Courier-Journal, 21 Aug. 2025
Alison Escalante, Forbes.com, 29 May 2025
The more stringent standards effectively limit emissions of other toxics, including benzene, lead and arsenic.
—Michael Hawthorne, Chicago Tribune, 25 May 2025
See All Example Sentences for toxic
Adjective
The toxic water quality is not new this summer.
—Jillian Frankel, People.com, 1 Sep. 2025
An internal investigation by the company — just a single page buried in thousands of pages of state records — shows at least one toxic chemical spill has already occurred in the plant.
—Olivia Evans, The Courier-Journal, 21 Aug. 2025
Noun
While the researchers behind this breakthrough may consider their product non toxic, its worth noting that the people who discovered the forever chemicals thought the same thing.
—Alison Escalante, Forbes.com, 29 May 2025
The more stringent standards effectively limit emissions of other toxics, including benzene, lead and arsenic.
—Michael Hawthorne, Chicago Tribune, 25 May 2025
See All Example Sentences for toxic
Recent Examples of Synonyms for toxic
Adjective
-
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,
Chicago Tribune,
5 Sep. 2025
Noun
-
Burning forests poisons the atmosphere.—
Suwanna Gauntlett Upjohn,
Forbes.com,
29 Aug. 2025
-
In 2023, a barred owl known as Owen was rescued near Boston’s Faneuil Hall after ingesting rat poison.—
Nara Schoenberg,
Chicago Tribune,
27 Aug. 2025
Noun
-
This isn’t the first study to suggest the importance of breakfast for living a long life—research has shown that regularly eating a morning meal is linked with lower overall and heart-related mortality (and that bypassing it can up your heart-disease risk).—
Erica Sloan,
SELF,
4 Sep. 2025
-
Yet America’s system is transactional, rewarding affluence while neglecting the very conditions that produce disease.—
Stan Chu Ilo,
Chicago Tribune,
3 Sep. 2025
Noun
-
Curcumin's antioxidant properties may also protect the lungs from damage caused by long-term exposure to toxins.—
Lindsay Curtis,
Health,
4 Sep. 2025
-
These are just some of the many harmful chemicals and toxins that are present in vape products.—
Omer Awan,
Forbes.com,
1 Sep. 2025
Cite this Entry
“Toxic.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/toxic. Accessed 9 Sep. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share