as in detrimental
causing or capable of causing harm
DDT has been proven to be extremely harmful to the environment
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Example Sentences
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Recent Examples of harmful
The American Psychological Association, American Academy of Child and Adolescent Psychiatry, and other medical associations have issued statements calling the practice harmful and ineffective at altering someone’s identity.
—
Solcyré Burga, Time, 10 Sep. 2025
Plumier told IndyStar that bullfrogs and green frogs are so plentiful and quick to breed that frog hunting hasn’t proven harmful to their populations in Indiana.
—Sophie Hartley, IndyStar, 9 Sep. 2025
The good news is that studies like this new one from the American Society of Anesthesiologists show that brief exposures to inhaled anesthesia is not harmful to young children, and does not cause brain damage.
—wendy Wisner, Parents, 9 Sep. 2025
However, this process can create chemical byproducts that can be harmful to human health.
—Chase Hunter, Mercury News, 9 Sep. 2025
See All Example Sentences for harmful
Solcyré Burga, Time, 10 Sep. 2025
Plumier told IndyStar that bullfrogs and green frogs are so plentiful and quick to breed that frog hunting hasn’t proven harmful to their populations in Indiana.
—Sophie Hartley, IndyStar, 9 Sep. 2025
The good news is that studies like this new one from the American Society of Anesthesiologists show that brief exposures to inhaled anesthesia is not harmful to young children, and does not cause brain damage.
—wendy Wisner, Parents, 9 Sep. 2025
However, this process can create chemical byproducts that can be harmful to human health.
—Chase Hunter, Mercury News, 9 Sep. 2025
See All Example Sentences for harmful
Recent Examples of Synonyms for harmful
Adjective
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Meanwhile, from an AI duality perspective, there is also a solid chance that AI can be detrimental to mental health.—
Lance Eliot,
Forbes.com,
8 Sep. 2025
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These die-offs have caused detrimental imbalances within the habitats.—
Lauren Liebhaber
September 5,
Miami Herald,
5 Sep. 2025
Adjective
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The National Weather Service in Nashville said the region is at a slight risk, a two on the five-step scale, for damaging winds, isolated large hail, heavy rains, frequent lightning and a possible tornado.—
Kirsten Fiscus,
Nashville Tennessean,
5 Sep. 2025
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The terrifying part is that these attacks are likely to become more frequent and more damaging.—
Alan Henry,
PC Magazine,
5 Sep. 2025
Adjective
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Whatever happens in their final qualifier, against Argentina on Tuesday, La Tri will travel to the World Cup next summer as one of South America’s most dangerous teams.—
Jack Lang,
New York Times,
8 Sep. 2025
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To dissidents, she has been seen as a hero putting her life on the line; to Modi’s supporters, as a dangerous subversive who is anti-national and anti-Hindu.—
Anderson Tepper,
The Atlantic,
8 Sep. 2025
Adjective
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The specialty retailer’s chief financial officer, Robert Ball, said Abercrombie has seen about $5 million in adverse impact from tariffs during the second quarter, chiefly manifested in the cost of sales, and expects $90 million net impact from tariffs for the year.—
Kate Nishimura,
Sourcing Journal,
4 Sep. 2025
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This tool helps with reading, writing, summarizing, adverse-event profile reviews, label comparisons, clinical protocol assessments, and even generating database code.—
Sixteen Ramos,
USA Today,
4 Sep. 2025
Adjective
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This was a classic Smith performance with tons of yardage and some risky throws with both good and bad results.—
Mike Sando,
New York Times,
8 Sep. 2025
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You were called something much worse, and [it was] accepted.—
Brenton Blanchet,
PEOPLE,
8 Sep. 2025
Cite this Entry
“Harmful.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/harmful. Accessed 12 Sep. 2025.
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