toxic 1 of 2

adjective

ˈtäk-sik How to pronounce toxic (audio)
Definition of toxicnext
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

toxic

2 of 2

noun

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

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
Adjective
The chemical is highly corrosive, toxic when inhaled or touched, and flammable under specific concentrations. — Georgina Jedikovska, Interesting Engineering, 2 Oct. 2026 Mercury is toxic to the nervous, digestive and immune systems, as well as the kidneys, lungs and skin, according to the World Health Organization. — Sandee Lamotte, CNN Money, 2 Oct. 2026
Noun
Manufacturers should be diligently working to clean up their supply chains and manufacturing practices to ensure their products are free of PFAS and other toxics. — Sarah Todd, STAT, 1 May 2026 The Michigan Legislature passed a law in 2008 meant to protect the public from harmful electronic waste toxics. — Nushrat Rahman, Freep.com, 27 Dec. 2025 See All Example Sentences for toxic
Recent Examples of Synonyms for toxic
  1. poisonous
  2. poison
  3. disease
  4. toxin
Adjective
  • With the throne disengaged from governance, petitions and reports from officials piled up unread, crucial state posts went unfilled, and the imperial bureaucracy splintered amid poisonous factional infighting.
    — Carl Minzner, Foreign Affairs, 5 Oct. 2026
  • With this potential even more poisonous investments in the bloated and indebted Paramount behemoth, there’s even more reason to reject it.
    — Abigail Disney, New York Daily News, 28 Sep. 2026
Definition of poisonous
Noun
  • The first image from the episode (see it above) shows Butters in what appears to be his backyard with the X-Pest exterminator guy, who has strapped on his tank of poison and has his sprayer wand at the ready.
    — Tom Tapp, Deadline, 29 Sep. 2026
  • The clues that Swift’s ghost is leaving for Johnson still aren’t really hitting until Johnson’s character starts feeling the effects of the literal poison being fed to her in her coffee and wine and realizes this man may be bad.
    — Alejandra Gularte, Vulture, 28 Sep. 2026
Definition of poison
Noun
  • Alzheimer’s disease and other types of dementia are difficult to study, in part because diagnosing the disease early in people is challenging.
    — Julie Moreno, The Conversation, 6 Oct. 2026
  • Younger demographics are being diagnosed with increasing cases of colon cancer, and people of color face disproportionately higher mortality rates from the disease.
    — Marissa R. Moss, Rolling Stone, 6 Oct. 2026
Definition of disease
Noun
  • But these same tools could be used to make toxins or alter the behavior of viral proteins.
    — ArsTechnica, ArsTechnica, 30 Sep. 2026
  • Your Bowel Movements Help Remove Toxins The nutrients in pears support healthy bowel movements by keeping stools soft, which also encourages the removal of toxins by flushing out the digestive system.
    — Cristina Mutchler, Verywell Health, 30 Sep. 2026
Definition of toxin

Browse Nearby Words

tows
toxic
toxicant
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Cite this Entry

“Toxic.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/toxic. Accessed 9 Oct. 2026.

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