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.
State officials in August announced that two unvaccinated residents died after being infected with measles. — Arkansas Online, 6 Oct. 2026 The last two flu seasons brought unusually high numbers of child deaths, the vast majority of them in unvaccinated kids. — ABC News, 2 Oct. 2026 Almost all of those cases have been among unvaccinated individuals. — Rachel Carlson, NPR, 30 Sep. 2026 The Pennsylvania Department of Health said an unvaccinated Lancaster County resident who tested positive for measles had died. — Lena H. Sun, Washington Post, 30 Sep. 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
See all Nearby Words

Cite this Entry

“Unvaccinated.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/unvaccinated. Accessed 9 Oct. 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
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