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
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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
Matthew Carey, Deadline, 24 Apr. 2026
The toxic dust floats to neighboring states, such as Wyoming and Idaho during strong wind events.
—Saige Miller, NPR, 24 Apr. 2026
Noelle Phillips, Denver Post, 30 Sep. 2025
In 2023, 20 steel mills and coke plants nationwide emitted nearly 2.4 million pounds of air toxics, 289,722 tons of criteria air pollutants and 43.3 million metric tons of greenhouse gases, according to the study.
—Maya Wilkins, Chicago Tribune, 1 Sep. 2025
See All Example Sentences for toxic
Adjective
His non-profit center, Get Your Drugs Tested, offers free drug checking and fentanyl screening to thousands, helping users avoid overdoses and death from the toxic drug supply.
—Matthew Carey, Deadline, 24 Apr. 2026
The toxic dust floats to neighboring states, such as Wyoming and Idaho during strong wind events.
—Saige Miller, NPR, 24 Apr. 2026
Noun
Environmental advocates say the new regulation of air toxics, which was required under a 2022 bill called Public Protections From Toxic Air Contaminants, will make the state’s air cleaner and its people healthier.
—Noelle Phillips, Denver Post, 30 Sep. 2025
In 2023, 20 steel mills and coke plants nationwide emitted nearly 2.4 million pounds of air toxics, 289,722 tons of criteria air pollutants and 43.3 million metric tons of greenhouse gases, according to the study.
—Maya Wilkins, Chicago Tribune, 1 Sep. 2025
See All Example Sentences for toxic
Recent Examples of Synonyms for toxic
Adjective
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Restoring the balance of the humors through profusely bleeding the patient or inducing vomiting or diarrhea with the poisonous plant hellebore.—
Literary Hub,
Literary Hub,
28 Apr. 2026
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There’s a steadiness to Tung/Wonder Woman that stands out for its quiet authority in a frequently goofy landscape peppered with poisonous robes and finger-eating minions.—
Sarah Shachat,
IndieWire,
24 Apr. 2026
Noun
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Ingesting rat poison could lead to bleeding gums and nosebleeds as well as bruising and blood in the stool.—
ABC News,
ABC News,
20 Apr. 2026
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Officials will continue to investigate the area for further evidence of poison bait, and also stressed the importance of the community's cooperation to discourage and prevent the use of poison baits against wildlife.—
Moná Thomas,
PEOPLE,
20 Apr. 2026
Noun
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The proposal would burden doctors with giving parents a highly detailed consent statement to be prepared by boards of medicine and osteopathic medicine, and forbid health authorities to order vaccinations during outbreaks of familiar or new deadly diseases.—
Orlando Sentinel,
The Orlando Sentinel,
29 Apr. 2026
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Overall, about half of children with the disease are infected during birth, Children's Hospital of Philadelphia said, while others caught it from family members.—
Cara Lynn Shultz,
PEOPLE,
29 Apr. 2026
Noun
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His recent posts on social media have increasingly focused on healthy eating, testing candy and baby formula for toxins, and pesticide use in agriculture.—
Kerry Sheridan,
NPR,
28 Apr. 2026
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Curcumin's antioxidant properties may also protect the lungs from damage caused by long-term exposure to toxins.—
Lindsay Curtis,
Health,
28 Apr. 2026
Cite this Entry
“Toxic.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/toxic. Accessed 1 May. 2026.
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