as in preventive
concerned with or serving to keep something from happening
the many prophylactic measures that city officials could have taken to reduce the scope of the disaster
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Recent Examples of prophylactic
Two injections of lenacapavir every six months offer near-perfect protection; older prophylactic treatments require daily pills, a challenge in countries with weak health systems.
—
Preeti Jha, semafor.com, 24 Sep. 2025
The report notes, though, that only women with a high risk of preeclampsia should use prophylactic low aspirin to prevent early pregancy loss, fetal growth restriction, stillbirth or early delivery.
—Max Rego, The Hill, 23 Sep. 2025
Most people with moderate to severe hemophilia B depend on weekly life-long prophylactic infusions of factor IX, which temporarily replaces or supplements low levels of the blood-clotting factor.
—Beth Warren, The Tennessean, 21 Aug. 2025
While cases are likely to be fatal when symptoms show up, Harrist told the outlet that a five-shot prophylactic course during a two-week period after being exposed, had a high chance of preventing sickness.
—Gabrielle Rockson, People.com, 19 Aug. 2025
See All Example Sentences for prophylactic
Preeti Jha, semafor.com, 24 Sep. 2025
The report notes, though, that only women with a high risk of preeclampsia should use prophylactic low aspirin to prevent early pregancy loss, fetal growth restriction, stillbirth or early delivery.
—Max Rego, The Hill, 23 Sep. 2025
Most people with moderate to severe hemophilia B depend on weekly life-long prophylactic infusions of factor IX, which temporarily replaces or supplements low levels of the blood-clotting factor.
—Beth Warren, The Tennessean, 21 Aug. 2025
While cases are likely to be fatal when symptoms show up, Harrist told the outlet that a five-shot prophylactic course during a two-week period after being exposed, had a high chance of preventing sickness.
—Gabrielle Rockson, People.com, 19 Aug. 2025
See All Example Sentences for prophylactic
Recent Examples of Synonyms for prophylactic
Adjective
-
But despite the best preventive measures, accidents will still sometimes happen.—
Jillian Pretzel,
Parents,
6 Feb. 2026
-
Secretary of Agriculture Brooke Rollins did the hard work of investigating the root cause and determining the best preventive action.—
Letters to the Editor,
The Orlando Sentinel,
6 Feb. 2026
Adjective
-
SpaceX identified technical and organizational preventative measures to avoid a reoccurrence of the event.—
Mike Wall,
Space.com,
6 Feb. 2026
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What may appear an extreme response could also prove preventative.—
Barbie Latza Nadeau,
CNN Money,
31 Jan. 2026
Cite this Entry
“Prophylactic.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/prophylactic. Accessed 12 Feb. 2026.
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