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
This is especially important because more than 90% of pancreatic cancers carry these harmful mutations, researchers said.
—
Angelica Stabile, FOXNews.com, 18 May 2026
Asked about those concerns, Senate Majority Leader Bob Duff, D-Norwalk, said the legislation is needed, adding the bill outlines helpful and harmful AI applications simultaneously.
—P.r. Lockhart, Hartford Courant, 17 May 2026
Their deaths were not inevitable — they were exposed to, and in many cases were pushed harmful content online, the kind any child could encounter.
—Stephanie Petit, PEOPLE, 17 May 2026
But wildlife and pollinators don't coexist well with harmful chemicals.
—Lauren David, Better Homes & Gardens, 17 May 2026
See All Example Sentences for harmful
Angelica Stabile, FOXNews.com, 18 May 2026
Asked about those concerns, Senate Majority Leader Bob Duff, D-Norwalk, said the legislation is needed, adding the bill outlines helpful and harmful AI applications simultaneously.
—P.r. Lockhart, Hartford Courant, 17 May 2026
Their deaths were not inevitable — they were exposed to, and in many cases were pushed harmful content online, the kind any child could encounter.
—Stephanie Petit, PEOPLE, 17 May 2026
But wildlife and pollinators don't coexist well with harmful chemicals.
—Lauren David, Better Homes & Gardens, 17 May 2026
See All Example Sentences for harmful
Recent Examples of Synonyms for harmful
Adjective
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However, pruning mistakes can be very detrimental, introducing shock or infection to an otherwise thriving shrub, tree, or flower.—
Emily Hayes,
Martha Stewart,
19 May 2026
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And then there is the part of the leverage exercise that so many times before has proven detrimental to the Heat — the waiting game.—
Ira Winderman,
Sun Sentinel,
16 May 2026
Adjective
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Storms could be strong and organized, bringing all severe weather threats — tornadoes, large hail, and damaging winds — and downpours will also be possible, the Weather Service said.—
Kansas City Star,
Kansas City Star,
15 May 2026
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Why Migrations Generate Headaches One of the most damaging aspects of migration happens in the human aspect of the business.—
Thomas Berndorfer,
Forbes.com,
15 May 2026
Adjective
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But pretty quickly, Wahl said that both the mother and police realized something more dangerous could be brewing.—
Amanda Lee Myers,
USA Today,
19 May 2026
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Sheets touched on the other key to his success — and any dangerous hitter’s success — in the above quote.—
Kevin Acee,
San Diego Union-Tribune,
18 May 2026
Adjective
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Post-Adverse Outcome Disclosure Obligations The replacement bill also creates disclosure obligations after an adverse outcome.—
Alonzo Martinez,
Forbes.com,
15 May 2026
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Prolonged stress can have adverse consequences, especially for pregnant mothers, children and critically ill patients.—
Adam Harrington,
CBS News,
14 May 2026
Adjective
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West Ham showed themselves to be a bad team, less than the sum of their parts and wholly ill-equipped for the challenge in front of them.—
George Caulkin,
New York Times,
18 May 2026
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Each reiteration and exaggeration of Mary’s bad behavior is another civic stroke of the chisel that perfects the monumental Lincoln in our collective imagination.—
Thomas Mallon,
New Yorker,
18 May 2026
Cite this Entry
“Harmful.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/harmful. Accessed 20 May. 2026.
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