Synonyms
Examples of harmful in a Sentence
DDT has been proven to be extremely harmful to the environment.
Recent Examples on the Web
Researchers may have found that the tartaric acid in grapes and raisins is the substance which is harmful to dogs.
—
Justin Gest, Newsweek, 10 Feb. 2025
Additionally, bleach can be harmful to your skin and respiratory system if not used properly.
—Daley Quinn, Southern Living, 10 Feb. 2025
Many invasive species end up in U.S. ecosystems when people release aquarium pets that are harmful to native species.
—Kate Linderman, Fort Worth Star-Telegram, 10 Feb. 2025
Listeria is especially harmful to people who are pregnant, aged 65 or older, or with weakened immune systems, according to the CDC.
—Kelly Tyko, Axios, 10 Feb. 2025
See all Example Sentences for harmful 
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Justin Gest, Newsweek, 10 Feb. 2025
Additionally, bleach can be harmful to your skin and respiratory system if not used properly.
—Daley Quinn, Southern Living, 10 Feb. 2025
Many invasive species end up in U.S. ecosystems when people release aquarium pets that are harmful to native species.
—Kate Linderman, Fort Worth Star-Telegram, 10 Feb. 2025
Listeria is especially harmful to people who are pregnant, aged 65 or older, or with weakened immune systems, according to the CDC.
—Kelly Tyko, Axios, 10 Feb. 2025
See all Example Sentences for harmful
Dictionary Entries Near harmful
Cite this Entry
“Harmful.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/harmful. Accessed 16 Feb. 2025.
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