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.
His claim motivated a phalanx of AIDS deniers, the forebears of the anti-vaccine militants today. Business Columnist, Los Angeles Times, 29 Jan. 2026 In anti-vaccine circles, the official story of polio—iron lungs, kids with leg braces, the triumph of Jonas Salk—has long been dismissed as misleading. Tom Bartlett, The Atlantic, 28 Jan. 2026 Public health often responds that MAHA supporters like Elizabeth, Melinda, and Nancy have been hoodwinked by social media influencers, grifters, and anti-vaccine zealots. Tom W. Johnson, STAT, 26 Jan. 2026 But Republicans trying to appeal to MAHA voters will need to walk a tightrope between the agricultural and food wing of the movement as well as the anti-vaccine wing, as Democrats try to exploit the latter as a weakness. Nathaniel Weixel, The Hill, 18 Jan. 2026 The new body quickly went about sidelining career CDC scientists and external advisers while platforming figures who have built careers in the anti-vaccine movement. Grayson Logue, Washington Post, 9 Jan. 2026 But not all are for staunchly anti-vaccine reasons or even because of vaccine hesitancy, Thorpe said. Deidre McPhillips, CNN Money, 8 Jan. 2026 His focus on aluminum dates back to his time as chairman and chief litigation counsel at the anti-vaccine group Children’s Health Defense. Aria Bendix, NBC news, 26 Dec. 2025 McCarthy is outspokenly anti-vaccine and has weathered many career controversies due to her health beliefs, which include claiming that autism is linked to vaccines. Zack Sharf, Variety, 19 Dec. 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 7 Feb. 2026.

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