unvaccinated

adjective

un·​vac·​ci·​nat·​ed ˌən-ˈvak-sə-ˌnā-təd How to pronounce unvaccinated (audio)
: not having received a vaccine : not vaccinated
children unvaccinated for measles

Examples of unvaccinated 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.
Texas has reported 753 cases so far this year, many affecting unvaccinated school children, according to the CDC. Lillian Ashworth, Oc Register, 10 July 2025 Of all the cases, 92 percent were in people who were unvaccinated or had an unknown vaccination status. ArsTechnica, 7 July 2025 Approximately 92% of cases involve unvaccinated patients or those with unknown vaccination status. Kansas City Star, 7 July 2025 If an unvaccinated child or person is feeling unwell, here’s what to watch for: Cough Runny nose Itchy, watery eyes A high fever Small white spots (Koplik's spots) inside the inner lining of the cheek What do measles look like? Brandi D. Addison, Austin American Statesman, 2 July 2025 See All Example Sentences for unvaccinated

Word History

First Known Use

1871, in the meaning defined above

Time Traveler
The first known use of unvaccinated was in 1871

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Cite this Entry

“Unvaccinated.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/unvaccinated. Accessed 20 Jul. 2025.

Medical Definition

unvaccinated

adjective
un·​vac·​ci·​nat·​ed -ˈvak-sə-ˌnāt-əd How to pronounce unvaccinated (audio)
: not vaccinated
unvaccinated children
Last Updated: - Updated example sentences
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