as in harmful
causing or capable of causing harm
nicotine has long been recognized as a deleterious substance
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Example Sentences
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Recent Examples of deleterious
Advertisement This response is helpful when there is a short-term challenge, but can be deleterious if chronically activated.
—
Lauryn Higgins, Time, 26 June 2025
The most frightening conclusion, and the one that’s jumping out in the coverage, is that the deleterious effects of using ChatGPT didn’t go away.
—James Folta, Literary Hub, 24 June 2025
For about as long as pop music has existed, arguments about its deleterious effects have raged, and the scrutiny hasn’t been entirely confined to female artists.
—Kalhan Rosenblatt, NBC news, 17 June 2025
Unlike many other Australian natives, phosphorus is not deleterious to the growth of kangaroo paws.
—Joshua Siskin, Oc Register, 19 June 2025
See All Example Sentences for deleterious
Lauryn Higgins, Time, 26 June 2025
The most frightening conclusion, and the one that’s jumping out in the coverage, is that the deleterious effects of using ChatGPT didn’t go away.
—James Folta, Literary Hub, 24 June 2025
For about as long as pop music has existed, arguments about its deleterious effects have raged, and the scrutiny hasn’t been entirely confined to female artists.
—Kalhan Rosenblatt, NBC news, 17 June 2025
Unlike many other Australian natives, phosphorus is not deleterious to the growth of kangaroo paws.
—Joshua Siskin, Oc Register, 19 June 2025
See All Example Sentences for deleterious
Recent Examples of Synonyms for deleterious
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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McNair said any delay in response from school officials and emergency responders are especially harmful.—
Edward Lee,
Baltimore Sun,
29 July 2025
Adjective
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The platform was recently accused by several state attorneys general of implementing addictive features across its family of apps that have detrimental effects on children’s mental health.—
Zach Vallese,
CNBC,
23 July 2025
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Water is a systemic need for plants of all types; however, too much water, whether supplied by rain or irrigation, is detrimental.—
Mary Marlowe Leverette,
Southern Living,
20 July 2025
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
Adjective
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Expose how these programs and their curriculum are damaging and not aligned with state workforce demands.—
Lily Kepner,
Austin American Statesman,
30 July 2025
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Despite the initial euphoria on European stock markets, strategists at UBS suggest the deal is likely to be damaging in the long run.—
Ganesh Rao,
CNBC,
28 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
Cite this Entry
“Deleterious.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/deleterious. Accessed 2 Aug. 2025.
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