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.
Now, unvaccinated people from all over the country were piling into the sports bar to meet others like them. — Jason Parham, Wired News, 6 June 2026 Most cases were among unvaccinated children under age 17, officials said. — Mary Kekatos, ABC News, 1 May 2026 The virus is one of the most contagious infectious diseases; so contagious, in fact, that 90% of unvaccinated people who are exposed end up contracting it. — Mary Walrath-Holdridge, USA Today, 8 June 2026 This second case follows confirmation that an unvaccinated adult who had traveled abroad returned home to Connecticut two weeks ago and began to show symptoms of measles after returning. — Staff Report, Hartford Courant, 29 June 2026 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

Rhymes for unvaccinated

See All Rhymes for unvaccinated

Browse Nearby Words

unuttered
unvaccinated
unvaluable
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Cite this Entry

“Unvaccinated.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/unvaccinated. Accessed 8 Jul. 2026.

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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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