anti-vaccine

adjective

ˌan-tē-vak-ˈsēn,
ˌan-ˌtī- How to pronounce anti-vaccine (audio)
-ˈvak-ˌsēn
variants or less commonly antivaccine
: opposed to the use of vaccines
A handful of parents and anti-vaccine activists told lawmakers … that they believe vaccines are responsible for countless cases of autism, learning disabilities and death.Jim Hughes
… the rising global threat of antivaccine sentiments and vaccine misinformation contributed to the WHO [=World Health Organization] classifying vaccine hesitancy as a top ten global health threat in 2019 …David M. Higgins and Sean T. O'Leary

Examples of anti-vaccine in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Kennedy is attacking immunizations on a much larger scale, pushing an anti-vaccine agenda, according to top CDC officials who resigned over Kennedy’s leadership. Simon Williams, Time, 8 Sep. 2025 Prominent members of the Kennedy family, including Schlossberg, recently called for RFK Jr, to resign over his anti-vaccine moves in office and the firing of high-level officials at the Center for Disease Control and Prevention. Karissa Waddick, USA Today, 7 Sep. 2025 What was supposed to happen When there isn't a zealous anti-vaccine activist personally directing federal vaccine policy, US health agencies have a thorough, transparent protocol for approving and recommending vaccinations. Beth Mole, ArsTechnica, 5 Sep. 2025 For decades, Kennedy has established a reputation as an anti-vaccine activist. Brittney Melton, NPR, 5 Sep. 2025 Their lawsuit is funded by the Informed Consent Action Network, or ICAN, an anti-vaccine nonprofit. Brenda Goodman, CNN Money, 5 Sep. 2025 Cassidy was originally on the fence about confirming Kennedy due to the now-secretary’s anti-vaccine rhetoric. The Hill, 5 Sep. 2025 In the past 200 days, Kennedy has terminated mRNA-research grants, stuffed a CDC advisory panel with anti-vaccine activists, and propped up unproven treatments during a deadly measles outbreak. Nicholas Florko, The Atlantic, 4 Sep. 2025 Houry reported that vaccine advisors (likely Geier and Lyn Redwood, another anti-vaccine advocate and former leader of Kennedy’s anti-vax Children's Health Defense) were making recommendations before even reviewing data. Judy Stone, Forbes.com, 3 Sep. 2025

Word History

First Known Use

1880, in the meaning defined above

Time Traveler
The first known use of anti-vaccine was in 1880

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Cite this Entry

“Anti-vaccine.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/anti-vaccine. Accessed 12 Sep. 2025.

Last Updated: - Updated example sentences
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