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 previously ran an anti-vaccine group and campaigned on ending vaccine mandates. Kate Plummer, MSNBC Newsweek, 3 Sep. 2025 Ezekiel Emanuel, who was a health-care adviser to Barack Obama, has been critical of Kennedy’s anti-vaccine views and worries that the movement’s fondness for supplements of dubious merit could be a distraction. Tom Bartlett, The Atlantic, 1 Sep. 2025 Kennedy has tried to advance anti-vaccine policies that are contradicted by decades of scientific research. Mary Clare Jalonick, Chicago Tribune, 31 Aug. 2025 But then those people got fired and replaced by this group with members who are science-averse and anti-vaccine. Isaac Chotiner, New Yorker, 31 Aug. 2025 Cassidy, a doctor, has been anxious about Kennedy’s anti-vaccine positions. Naomi Lim, The Washington Examiner, 29 Aug. 2025 Some of the members, like Kennedy, have a history of anti-vaccine advocacy and involvement in anti-vaccine groups. Mary Walrath-Holdridge, USA Today, 27 Aug. 2025 Kennedy has tried to advance anti-vaccine policies that are contradicted by decades of scientific research. Arkansas Online, 22 Aug. 2025 The anti-vaccine scion embarrassment to his famous political family is also conflating pharmaceutical corporations with professional organizations of medical practitioners and researchers that exist separate and apart from the industry. New York Daily News Editorial Board, New York Daily News, 21 Aug. 2025

Word History

First Known Use

1880, in the meaning defined above

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

Browse Nearby Words

Cite this Entry

“Anti-vaccine.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/anti-vaccine. Accessed 10 Sep. 2025.

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!