1
as in poisonous
bad for the well-being of the body
mixing bleach and ammonia can cause noxious fumes that can seriously harm you
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Antonyms & Near Antonyms
2
as in harmful
causing or capable of causing harm
noxious smog that for years has been encrusting the historic cathedral with soot
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Antonyms & Near Antonyms
3
as in disgusting
causing intense displeasure, disgust, or resentment
the website reserved the right to remove and report hate speech and other noxious types of postings
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Example Sentences
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Recent Examples of noxious
Along with the swamp eels, scientists in the USGS Wetland and Aquatic Research Center have been most concerned about the spread of Cuban tree frogs, which secrete noxious chemicals that are harmful to humans, and alligatorweed, which clogs waterways that can impact infrastructure.
—
Wesley Bruer, CNN Money, 8 Sep. 2025
With the original Toxic Avenger creator’s blessing, Macon Blair has brought the cult franchise back from its noxious cinematic dumping grounds.
—Glenn Garner, Deadline, 7 Sep. 2025
These critics object that honoring Confederates is really celebrating noxious symbols of slavery and white supremacy.
—Time, 5 Sep. 2025
This is a particularly noxious form of socialism.
—Steve Chapman, Chicago Tribune, 3 Sep. 2025
See All Example Sentences for noxious
Wesley Bruer, CNN Money, 8 Sep. 2025
With the original Toxic Avenger creator’s blessing, Macon Blair has brought the cult franchise back from its noxious cinematic dumping grounds.
—Glenn Garner, Deadline, 7 Sep. 2025
These critics object that honoring Confederates is really celebrating noxious symbols of slavery and white supremacy.
—Time, 5 Sep. 2025
This is a particularly noxious form of socialism.
—Steve Chapman, Chicago Tribune, 3 Sep. 2025
See All Example Sentences for noxious
Recent Examples of Synonyms for noxious
Adjective
-
Mothballs are poisonous and represent a significant danger to the family dog, especially those that tend to eat first and ask questions later.—
Paul Cappiello,
Louisville Courier Journal,
10 Oct. 2025
-
Horse chestnuts are poisonous and not edible.—
Jenna Prestininzi,
Freep.com,
9 Oct. 2025
Adjective
-
While traditional failures to moderate third-party posts are usually protected, design choices, like building chatbots that produce harmful content, could expose companies to liability.—
Beatrice Nolan,
Fortune,
8 Oct. 2025
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That means millions of young people remain vulnerable to a practice the nation’s leading experts have long rejected as both harmful and scientifically baseless.—
Timothy Schraeder Rodriguez,
Time,
8 Oct. 2025
Adjective
-
Add in moisture and soap scum, and kitchen sinks can get pretty disgusting.—
Halee Miller Van Ryswyk,
Better Homes & Gardens,
6 Oct. 2025
-
In Johnston’s reimagining, Jim and Credenza Twit operate the most disgusting, dangerous, and idiotic amusement park in the world, Twitlandia.—
Melanie Goodfellow,
Deadline,
6 Oct. 2025
Adjective
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This action starts the process of clearing toxic species, which restores the blood vessels’ natural role as an effective waste-clearing pathway.—
Mrigakshi Dixit,
Interesting Engineering,
7 Oct. 2025
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Chocolate, caffeine, alcohol, and raw dough all pose serious risks due to toxic ingredients or fermentation byproducts.—
Maria Azzurra Volpe,
MSNBC Newsweek,
7 Oct. 2025
Adjective
-
So quick, so dangerous in the final third, and surely so motivated to revive his career in a World Cup year.—
Tim Spiers,
New York Times,
7 Oct. 2025
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But even hanging around the base camp can be dangerous, as hundreds of holiday makers were trapped when the area was hit in an unexpected blizzard over the weekend.—
Kaijing Xiao,
ABC News,
6 Oct. 2025
Adjective
-
Lindell handles very ugly, difficult matchups and usually comes out on top, regardless of who he’s partnered with.—
Harman Dayal,
New York Times,
7 Oct. 2025
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If the scoreline made for ugly reading, the performance wasn’t much better.—
Ben Church,
CNN Money,
6 Oct. 2025
Adjective
-
The change comes amid concerns about fireworks causing unhealthful air.—
Rong-Gong Lin II,
Los Angeles Times,
19 June 2025
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Health professionals encourage people to use lean cuts of meat because most of the fat in animal products is unhealthful saturated fat, which can raise the risk of heart disease and cancer.—
Bethany Thayer,
Detroit Free Press,
22 June 2024
Adjective
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Consuming high amounts of tannins may lead to adverse health effects in humans and animals, such as severe liver and kidney damage.—
Jenna Prestininzi,
Freep.com,
9 Oct. 2025
-
Back in January, a study from World Weather Attribution found that, though the fires were likely influenced by a number of factors, climate change made the adverse weather conditions that fueled the flames 35% more likely.—
Simmone Shah,
Time,
8 Oct. 2025
Cite this Entry
“Noxious.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/noxious. Accessed 13 Oct. 2025.
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