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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Recent Examples of noxious
Their eyes stinging from the noxious substance, cops managed to tackle Baraket to the ground and take her into custody.
—
Rocco Parascandola, New York Daily News, 2 July 2025
One of the two Chinese nationals arrested for allegedly smuggling a toxic crop-killing pathogen, which also has devastating health effects on humans, stuffed the noxious fungus into her boots while entering the U.S. in 2022, documents show.
—Peter D'abrosca, FOXNews.com, 4 June 2025
Marian Flanders, 79, wondered about the potentially noxious chemicals that spread as a result of the explosion into crops and air.
—Ishani Desai
july 8, Sacbee.com, 8 July 2025
In the past couple of years, the volume of sewage flows, laced with contaminated stormwater, noxious chemicals and trash, has been the highest in the last quarter-century, worsening conditions for those living and working nearby.
—Tammy Murga, San Diego Union-Tribune, 5 July 2025
See All Example Sentences for noxious
Rocco Parascandola, New York Daily News, 2 July 2025
One of the two Chinese nationals arrested for allegedly smuggling a toxic crop-killing pathogen, which also has devastating health effects on humans, stuffed the noxious fungus into her boots while entering the U.S. in 2022, documents show.
—Peter D'abrosca, FOXNews.com, 4 June 2025
Marian Flanders, 79, wondered about the potentially noxious chemicals that spread as a result of the explosion into crops and air.
—Ishani Desai
july 8, Sacbee.com, 8 July 2025
In the past couple of years, the volume of sewage flows, laced with contaminated stormwater, noxious chemicals and trash, has been the highest in the last quarter-century, worsening conditions for those living and working nearby.
—Tammy Murga, San Diego Union-Tribune, 5 July 2025
See All Example Sentences for noxious
Recent Examples of Synonyms for noxious
Adjective
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Gastroenteritis is a good reason to refrain from consuming cocaine, various heavy metals or poisonous mushrooms.—
Bruce Y. Lee,
Forbes.com,
29 July 2025
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Then his heart beat its last, and the poisonous moth embraced him.—
Ingrid Vasquez,
People.com,
24 July 2025
Adjective
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That might help researchers discover which technology helps what kinds of people best and which makes no impact or is harmful to brain health.—
Nicole Villalpando,
Austin American Statesman,
30 July 2025
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Pavi, like the many disabled characters in the Avatar universe that came before her, can serve as a reminder that inclusivity isn’t harmful to good storytelling but is a key part of it.—
Braedon Montgomery,
Forbes.com,
29 July 2025
Adjective
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There is no way around it: Toilet brushes are disgusting.—
Brandee Gruener,
Southern Living,
16 July 2025
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Nearly 200 pounds of disgusting mats and fur was removed, which equates to an average of 1.5 pounds per dog.—
Jack Beresford,
MSNBC Newsweek,
16 July 2025
Adjective
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Evidence, while not conclusive, suggested the babies died from breathing in toxic black mold contaminating their homes due to water leaks.—
Matt Fuchs,
Time,
28 July 2025
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But too much of one specific type of algae can be toxic, causing a harmful algal bloom, also sometimes known as a red tide.—
Lex Harvey,
CNN Money,
26 July 2025
Adjective
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Here's what each means, according to the NWS: Heat advisory: A heat advisory is the lowest level and is issued for dangerous heat conditions that are not expected to reach the criteria for a more serious alert.—
Chad Murphy,
The Enquirer,
24 July 2025
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More dangerous heat waves The Great Lakes region warmed substantially faster in the six years since the last assessment than it did in decades prior, the report shows.—
Caitlin Looby,
jsonline.com,
24 July 2025
Adjective
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These are the kind of ugly games that sometimes get played when GMs and coaches grow apart and pressure builds on their job securities and livelihoods.—
Pat Leonard,
Hartford Courant,
21 July 2025
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In 1996, Cantor died, and Lutnick, after an ugly succession battle with Cantor’s widow, Iris, took control.—
Antonia Hitchens,
New Yorker,
21 July 2025
Adjective
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The change comes amid concerns about fireworks causing unhealthful air.—
Rong-Gong Lin II,
Los Angeles Times,
19 June 2025
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The unhealthful effects of autocracy remain robust even when accounting for economic differences and when excluding Venezuela and its collapsing health-care system.—
Thomas J. Bollyky,
Foreign Affairs,
30 Jan. 2020
Adjective
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The team identified three distinct behavioral phenotypes as a result of their experiments, representing the varying sensitivity of people to the adverse consequences (punishment) of their actions.—
Jennifer Ouellette,
ArsTechnica,
24 July 2025
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Without such data, the systems can serve adverse, false results or fail to understand the context of a user’s query, among other issues.—
Meghan Hall,
Sourcing Journal,
22 July 2025
Cite this Entry
“Noxious.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/noxious. Accessed 6 Aug. 2025.
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