as in detrimental
causing or capable of causing harm
DDT has been proven to be extremely harmful to the environment
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Recent Examples of harmful
Additional biomarker testing The new guidelines also suggest testing for apolipoprotein B (apoB), a protein that attaches to harmful fat particles in the blood, once a patient has met their LDL goal.
—
Lindsey Leake, NBC news, 13 Mar. 2026
By capturing the oxygen, the coating prevents it from oxidizing the electrolyte and forming harmful byproducts.
—Neetika Walter, Interesting Engineering, 13 Mar. 2026
And choosing the right magnesium supplement and following best practices for dosing are essential to avoid any harmful or inconvenient side effects.
—Kristen Rogers, CNN Money, 13 Mar. 2026
Protect young seedlings in the garden from harmful cucumber beetles by covering them with insect netting or row covers.
—Karen Brewer Grossman, Southern Living, 12 Mar. 2026
See All Example Sentences for harmful
Lindsey Leake, NBC news, 13 Mar. 2026
By capturing the oxygen, the coating prevents it from oxidizing the electrolyte and forming harmful byproducts.
—Neetika Walter, Interesting Engineering, 13 Mar. 2026
And choosing the right magnesium supplement and following best practices for dosing are essential to avoid any harmful or inconvenient side effects.
—Kristen Rogers, CNN Money, 13 Mar. 2026
Protect young seedlings in the garden from harmful cucumber beetles by covering them with insect netting or row covers.
—Karen Brewer Grossman, Southern Living, 12 Mar. 2026
See All Example Sentences for harmful
Recent Examples of Synonyms for harmful
Adjective
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Some foods stood out as especially neuroprotective or detrimental.—
Dr. Sumana Kondle,
ABC News,
17 Mar. 2026
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Trump has faced criticism for policies seen as detrimental to gay, transgender and nonbinary individuals.—
Nimi Princewill,
CNN Money,
16 Mar. 2026
Adjective
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The western half of the country spent the winter baking—nine states had their hottest winter ever and five their second-hottest—which worsened drought conditions and has raised the risks of damaging wildfires come spring and summer.—
Andrea Thompson,
Scientific American,
13 Mar. 2026
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The potential storms could bring more damaging winds and heavy rain, the weather service said, with a slight chance for tornadoes to develop.—
Caroline Zimmerman,
Kansas City Star,
11 Mar. 2026
Adjective
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The private weather service AccuWeather calculated that more than 200 million people were under threat Monday of some kind of dangerous weather.—
Arkansas Online,
Arkansas Online,
17 Mar. 2026
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Prominent quartz slab makers acknowledge that processing produces dangerous dust, but claim risks are avoidable.—
Ethan Baron,
Mercury News,
16 Mar. 2026
Adjective
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Honeycutt noted that the executive order came just days before the House Agriculture Committee was considering a five-year farm bill that would shield manufacturers from litigation related to adverse health impacts when the chemicals are used in accordance with federal law.—
Swapna Venugopal Ramaswamy,
USA Today,
14 Mar. 2026
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Short-term exposure by inhalation can cause headaches, dizziness, nausea, fatigue respiratory irritation and other adverse health effects, according to the federal Agency for Toxic Substances and Disease Registry.—
Los Angeles Times,
Los Angeles Times,
13 Mar. 2026
Adjective
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Nobody paid much attention to weather forecasts because winter days were usually the same and, if different, just worse.—
Bradley Gitz,
Arkansas Online,
16 Mar. 2026
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Jokic eagerly took advantage of bad transition defense, looking for long outlet passes to Braun and Bruce Brown.—
Bennett Durando,
Denver Post,
15 Mar. 2026
Cite this Entry
“Harmful.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/harmful. Accessed 18 Mar. 2026.
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