as in detrimental
causing or capable of causing harm
DDT has been proven to be extremely harmful to the environment
Synonyms & Similar Words
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Antonyms & Near Antonyms
Example Sentences
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Recent Examples of harmful
Tech captures harmful gasses such as CO2, nitric oxide (NOx) and volatile organic compounds (VOCs).
—
Jennifer Bringle, Sourcing Journal, 14 Oct. 2025
The changes come as Instagram is under fire for allegedly failing to protect underage users from harmful content.
—Solcyré Burga, Time, 14 Oct. 2025
Too much exposure to BPA may be harmful to your health.
—Merve Ceylan, Health, 14 Oct. 2025
Luckily our liver is ready for this and in two phases makes a toxic substance less harmful and then converts it to a water soluble form for excretion.
—Sheah Rarback, Miami Herald, 14 Oct. 2025
See All Example Sentences for harmful
Jennifer Bringle, Sourcing Journal, 14 Oct. 2025
The changes come as Instagram is under fire for allegedly failing to protect underage users from harmful content.
—Solcyré Burga, Time, 14 Oct. 2025
Too much exposure to BPA may be harmful to your health.
—Merve Ceylan, Health, 14 Oct. 2025
Luckily our liver is ready for this and in two phases makes a toxic substance less harmful and then converts it to a water soluble form for excretion.
—Sheah Rarback, Miami Herald, 14 Oct. 2025
See All Example Sentences for harmful
Recent Examples of Synonyms for harmful
Adjective
-
The Yankees lost a bidding war with the New Yorke Mets in the offseason for Soto and his departure proved to be detrimental to both parties.—
Barry M. Bloom,
Sportico.com,
12 Oct. 2025
-
This is detrimental to their economy.—
Matthew Kayser,
USA Today,
10 Oct. 2025
Adjective
-
The organization is also working with ranchers to establish prescribed burn associations to manage the damaging plants and is organizing community cutting days to reduce woody encroachment further.—
Kelli Bender,
PEOPLE,
17 Oct. 2025
-
Strong winds capable of knocking out power and damaging or uprooting trees are the biggest threat, though there’s enough spin in the atmosphere to generate isolated tornadoes that can form quickly with little advance warning.—
Chris Dolce,
CNN Money,
17 Oct. 2025
Adjective
-
Hat tips go to left tackle Jaylon Moore — who stepped in for Josh Simmons at the last minute, against one of the most dangerous pass rushers in the league — and, of course, Kelce.—
Kansas City Star,
Kansas City Star,
13 Oct. 2025
-
Inexperienced swimmers should remain out of the water due to dangerous surf conditions.—
NC Weather Bot,
Charlotte Observer,
13 Oct. 2025
Adjective
-
Kalshi’s proclamations about geolocation expenses having a serious adverse effect on its budget are disputed by people and companies from the gambling establishment.—
Dan Bernstein,
Sportico.com,
16 Oct. 2025
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For the descendants of fired, demoted, and aspiring civil servants, the adverse economic effects persisted for generations.—
Time,
Time,
14 Oct. 2025
Adjective
-
The rapid escalation of trade tensions sank US stocks on Friday, with the S&P 500 and Nasdaq recorded their worst day since April.—
John Liu,
CNN Money,
13 Oct. 2025
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Investors are eyeing a stock market rebound after Friday’s trade war flare-up sent the S&P 500 to its worst loss since April.—
Jason Ma,
Fortune,
13 Oct. 2025
Cite this Entry
“Harmful.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/harmful. Accessed 19 Oct. 2025.
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