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.
The problem is that there is no anti-vaccine side in the legitimate practice of science and medicine. New York Daily News Editorial Board, New York Daily News, 11 June 2025 Kennedy, the founder of an anti-vaccine group, said his overhaul of the committee would restore public trust in vaccines. Arkansas Online, 10 June 2025 Kennedy, a longtime anti-vaccine activist before joining the Trump administration, announced May 27 that COVID vaccines would be removed from the CDC’s immunization schedule for healthy pregnant women and healthy children. Kff Health News, San Diego Union-Tribune, 10 June 2025 Kennedy, a longtime anti-vaccine activist before joining the Trump administration, announced May 27 that covid vaccines would be removed from the CDC’s immunization schedule for healthy pregnant women and healthy children. Kff Health News, Oc Register, 2 June 2025 Secretary of Health and Human Services Robert F. Kennedy Jr., a longtime and prominent anti-vaccine activist, has repeatedly questioned the safety of mRNA COVID vaccines. Katherine J. Wu, The Atlantic, 31 May 2025 But Kennedy, a leading anti-vaccine advocate before becoming health secretary, decided not to wait for the scientific panel’s review. Mike Stobbe, Chicago Tribune, 30 May 2025 The Centers for Disease Control and Prevention on Thursday updated its immunization schedules for children and adults to partially reflect the abrupt changes announced by health secretary and anti-vaccine advocate Robert F. Kennedy Jr. earlier this week. Beth Mole, ArsTechnica, 30 May 2025 This was not a position following the science, but one more expression of the RFK’s nutty and long-standing anti-vaccine activism. New York Daily News Editorial Board, New York Daily News, 29 May 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 18 Jun. 2025.

Last Updated: - Updated example sentences
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